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Question

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

motion CBSE Class 9

August 25, 2024

Answer

Here we have,

Acceleration, a = 4 m/s²

Initial velocity, u = 0 m/s

Time, t = 10 s

Distance covered (s) =?

We know that, s = ut + ${1\over2}$ at²

⇒ s = 0 × 10 + ${1\over2}$ × 4 × (10)² m

⇒ s = 2 × 100 m

⇒ s = 200 m

Thus, racing car will cover a distance of 200 m after start in 10 s with given acceleration.

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