A bus starting from rest moves with a uniform acceleration of $0.1 m s^{- 2}$ for $2 m i n u t e s$ . The distance travelled is:

720 m

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180 m

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360 m

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900 m

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Solution

The correct option is B $720 m$
Given:
Initial speed of bus: $u = 0 m s^{- 1}$
$a = 0.1 m s^{- 2}, t = 2 m i n = 120 s$
Using second equation of motion:
$s = u t + \frac{1}{2} a t^{2}$
$s = 0 \times 120 + \frac{1}{2} \times 0.1 \times 120^{2} = 720 m$

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2 m i n u t e s

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