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Standard XII

Physics

Instantaneous Velocity

Ram's car doe...

Question

Ram's car does not start, so his friend helps him by pushing it for 10 seconds after which the car reaches a speed of 2 m $s^{- 1}$ .
Calculate the acceleration of the car.

20 m

s^{- 2}

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0.2 m

s^{- 2}

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5 m

s^{- 2}

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10 m

s^{- 2}

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Solution

The correct option is B 0.2 m $s^{- 2}$
$a = \frac{v - u}{t}$
$u = 0, t = 10 s, v = 2 m s^{- 1}$
$a = \frac{2 - 0}{10} = 0.2 m s^{- 2}$

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Ram's car does not start, so his friend helps him by pushing it for 10 seconds after which the car reaches a speed of 2 m s−1.Calculate the acceleration of the car.

The correct option is B 0.2 m s−2a=v−utu=0,t=10s,v=2ms−1a=2−010=0.2ms−2

Ram's car does not start, so his friend helps him by pushing it for 10 seconds after which the car reaches a speed of 2 m $s^{- 1}$ .
Calculate the acceleration of the car.

The correct option is B 0.2 m $s^{- 2}$
$a = \frac{v - u}{t}$
$u = 0, t = 10 s, v = 2 m s^{- 1}$
$a = \frac{2 - 0}{10} = 0.2 m s^{- 2}$