Question

A racing car has a uniform acceleration of 4 m s -2 . What distance will it cover in 10 s after start?
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Answer 1

Answer:

Explanation:

Given :-

Initial speed of car, u = 0 (As car starts)

Acceleration of car, a = 4 m/s²

Time taken by car, t = 10 seconds

To Find :-

Distance covered, s = ??

Formula to be used :-

2nd equation of motion,

i.e, s = ut + 1/2at²

Solution :-

Putting all the values, we get

s = ut + 1/2at²

⇒ s = 0 × 10 + 1/2 × 4 × 10²

⇒ s = 1/2 × 4 × 100

⇒ s = 2 × 100

⇒ s = 200 m

Hence, the distance covered by car is 200 m.