Is the acceleration of a car greater when the accelerator is pushed to the floor or when brake pedal is pushed hard?

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ALOK_RAJ Asked Aug 3, 2023

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A driver decreases the speed of a car from 25 m/s to 10 m/s in 5 Find the acceleration of the car.

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What is the acceleration produced by a force of 12 newtons exerted on an object of mass 3 kg?

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ALOK_RAJ Asked Jul 30, 2023

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A car travelling at 20 km/h speeds up to 60 km/h in 6 seconds. What is its acceleration?

ALOK_RAJ Asked Jul 30, 2023

by ALOK_RAJ

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Chandan Asked Sep 24, 2023

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The acceleration of a particle is found to depend upon time as follows —

Chandan Asked Sep 24, 2023

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ANAND_YADAV Asked Jul 30, 2023

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A ball is dropped on a floor from a height of 5 meter. It rebounds to a height of $3.2$ metre. If the ball as in contact with the floor for $0.1 sec$.,

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by ANAND_YADAV

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AnjaliYadav Asked Nov 1, 2022

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A small ball is dropped from a height 100m on a floor. The ball rebounds to a height of 20 meter.

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ANAND_YADAV Asked Aug 2, 2023

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A particle moves in x-y plane according to the equations x=4t^{2}+5t+16 and y=5t where x, y are in meter and t is in second. The acceleration of the particle is

ANAND_YADAV Asked Aug 2, 2023

by ANAND_YADAV

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ALOK_RAJ Asked Sep 21, 2022

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In the above question calculate the acceleration of the train.

ALOK_RAJ Asked Sep 21, 2022

by ALOK_RAJ

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Ankit Asked Oct 1, 2023

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If a body moves with constant acceleration, then we write

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Aayush Asked Feb 20

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Which would require a greater force-accelerating a 10 gram mass at 5 m/s^2 or a 20 gram mass at 2 m/s^2?

Aayush Asked Feb 20

by Aayush

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ANAND_YADAV Asked Jul 29, 2023

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If unit of length and time is doubled, the numerical value of ' $g$ ' (acceleration due to gravity) will become?

ANAND_YADAV Asked Jul 29, 2023

by ANAND_YADAV

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Aayush Asked Feb 2

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For a body moving on an inclined plane (frictionless), we have acceleration —

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ANAND_YADAV Asked Aug 2, 2023

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The displacement 'x' and time of travel 't' for a particle moving an a straight line are related as $t=$ $\sqrt{(x+1)(x-1)}$. Its acceleration at a time $t$ is

ANAND_YADAV Asked Aug 2, 2023

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Mohit Asked Mar 15, 2022

113 views

एक पिण्ड स्थिर अवस्था में समान त्वरण से चलना प्रारम्भ करता है। यदि पिण्ड प्रथम 4 सेकेण्ड में S1 दूरी तय करता है, तो अगले 4 सेकेण्ड में तय की गई दूरी S2 क्या होगी?

Mohit Asked Mar 15, 2022

by Mohit

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4 Votes

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139 views

In a second order reaction, when the concentration of both the reactants are equal, the reaction is completed 20% in 500s. How long would it take for the reaction to go to 60% completion?

Shiv roshan kushwaha Asked Apr 22, 2022

by Shiv roshan kushwaha

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4 Votes

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ALOK_RAJ Asked Nov 28, 2023

69 views

When chlorine water is added to an aqueous solution of potassium halide in presence of chloroform, a violet colour is obtained.

ALOK_RAJ Asked Nov 28, 2023

by ALOK_RAJ

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ALOK_RAJ Asked Aug 3, 2023

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Thomas throws a silver coin in the sea. The density of the coin is 0.985 gm/m3. Will the coin float on the surface of water or it will sink?

ALOK_RAJ Asked Aug 3, 2023

by ALOK_RAJ

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ALOK_RAJ Asked May 7, 2022

139 views

In which one of the following pairs the radius of the second species is greater than that of the first?

ALOK_RAJ Asked May 7, 2022

by ALOK_RAJ

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1 Vote

139 Views

Aayush Asked Feb 20

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A racing car has a uniform acceleration of 4 m/s^2. What distance will it cover in 10 seconds after the start?

Aayush Asked Feb 20

by Aayush

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Chandan Asked Aug 13, 2023

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When 0.1 mol ${MnO}_4^{2-}$ is oxidised the quantity of electricity required to completely oxidise ${MnO}_4^{2-}$ is

Chandan Asked Aug 13, 2023

by Chandan

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ALOK_RAJ Asked Oct 18, 2023

194 views

A resistance of $50 \Omega$ is registered when two electrodes are suspended into a beaker containing a dilute solution of a strong electrolyte such that exactly half of the them are submerged into solution.

ALOK_RAJ Asked Oct 18, 2023

by ALOK_RAJ

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Aayush Asked Feb 1

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Chemical (A) is used for water softening to remove temporary hardness. (A) reacts with Na2CO3 to generate caustic soda. When CO2 is bubbled through (A), it turns cloudy.

Aayush Asked Feb 1

by Aayush

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ALOK_RAJ Asked Apr 25

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If the eye is kept very close to a converging lens (focal length = 10 cm) and at the optical centre of the lens and an object is kept at distance 'd' then the minimum distance 'd' of the object from the lens so that its image can be seen clearly by the defect free eye is :

ALOK_RAJ Asked Apr 25

by ALOK_RAJ

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Chandan Asked Sep 11, 2023

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A vessel of volume $8.0 \times 10^{-3} m ^{3}$ contains an ideal gas at 300 K and 200 kPa. The gas is allowed to leak till the pressure falls to 125 kPa. Calculate the amount of the gas (in moles) leaked assuming that the temperature remains constant.

Chandan Asked Sep 11, 2023

by Chandan

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Chandan Asked Sep 11, 2023

52 views

A body of mass M is resting on a rough horizontal plane surface, the coefficient of friction being equal to $\mu .$ At $t=0$

Chandan Asked Sep 11, 2023

by Chandan

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ANAND_YADAV Asked Aug 2, 2023

85 views

A Carnot refrigerator extracts heat from water at $0^{\circ}{C}$ and rejects it to room at $24.4^{\circ}{C}$. The work required by the refrigerator for every $1{kg}$ of water converted into ice is

ANAND_YADAV Asked Aug 2, 2023

by ANAND_YADAV

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ANAND_YADAV Asked Jul 29, 2023

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The external and internal diameters of a hollow cylinder are measured to be $(4.23 \pm 0.01) cm$ and $(3.89 \pm 0.01) cm$. The thickness of the wall of the cylinder is

ANAND_YADAV Asked Jul 29, 2023

by ANAND_YADAV

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AnjaliYadav Asked Oct 31, 2022

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Under what condition the instantaneous velocity of a body is equal to its average velocity.

AnjaliYadav Asked Oct 31, 2022

by AnjaliYadav

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Mohit Asked Mar 17, 2022

120 views

एक कार की गति 10 सेकेण्ड में 20 किमी./घण्टा से 50 किमी. /घण्टा तक बदलती है, तो इसका त्वरण कितना है ? Ek Car Ki Gati 10 second Mein 20 kilometre/ghanta Se 50 kilometre/ghanta Tak Badalti Hai To Iska Taran Kitna Hai?

Mohit Asked Mar 17, 2022

by Mohit

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5 Votes

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Aayush Asked Feb 2

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A, B and C elements have the oxidation number of +6, -2 and -1 respectively. The possible molecular formula when these atoms combine can be —

Aayush Asked Feb 2

by Aayush

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ANAND_YADAV Asked Aug 2, 2023

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The position vector of a particle is given as $\vec{r}=\left(t^{2}-4 t+6\right) \hat{i}+\left(t^{2}\right) \hat{j}$. The time after which the velocity vector and acceleration vector becomes perpendicular to each other is equal to

ANAND_YADAV Asked Aug 2, 2023

by ANAND_YADAV

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ALOK_RAJ Asked Nov 19, 2023

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A certain volume of nitrogen contains 3000 molecules at $30^{\circ} C$. How many molecules will it contain if it is heated to $100^{\circ} C$ and the pressure remains the same?

ALOK_RAJ Asked Nov 19, 2023

by ALOK_RAJ

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Chandan Asked Sep 15, 2023

102 views

For the elementary reaction $M \rightarrow N$, the rate of disappearance of M increases by a factor of 8 upon doubling the concentration of M. The order of the reaction with respect to M is

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Chandan Asked Sep 15, 2023

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The coagulation of 10 mL of a colloidal sol of gold is completely prevented by addition of 0.25 g of a substance X to it before adding 1 mL of 10% NaCl solution. The gold number of X is

Chandan Asked Sep 15, 2023

by Chandan

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ALOK_RAJ Asked Aug 31, 2023

81 views

Compressibility factor (Z) for N2 at $-23^{\circ} C$ and 25 atm pressure is 1.2. Calculate moles of N2 gas required to fill a gas cylinder of 7 liter capacity under the given conditions :

ALOK_RAJ Asked Aug 31, 2023

by ALOK_RAJ

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Is the acceleration of a car greater when the accelerator is pushed to the floor or when brake pedal is pushed hard?

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