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3 years ago

A car starts from rest it grains acceleration

Physics

1 answer:

Sunny_sXe [5.5K]3 years ago

7 0

Explanation:

Given,

A car is starting from rest, so it's initial velocity (u)= 0m/s

Acceleration (a) = 20m/s²

distance covered (s) = 50m

Therefore, time taken (t) = ?

Here,

s= ut + 1/2 at²

or, 50 = 0 × t + 1/2 × 20 × t²

or, 50 = 0 + 20t² /2

or, 50× 2= 20t²

or, 100 = 20t²

or, 100/20 = t²

or, 5 = t²

or, √5 = t

therefore, t = 2.2360 seconds.

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