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1st Equation of Motion

Question

If a car at rest accelerates uniformly and attains a speed of 72 km/hr in 10 s, then it covers a distance of:
200 m
50 m
100 m
400 m

A

100 m

B

200 m

C

50 m

D

400 m

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Solution

Verified by Toppr

Given
u=0
v=72 km/h=20 m/s
t=2s
$a = \frac{v - u}{t}$
$a = 2$
$s = u t + \frac{a t^{2}}{2}$
putting values
$s = 100 m$

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