Question

A car starts from rest and attains a speed of 36km/h in 2 sec. calulate velocity of in 5 sec.


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Answer 1

Answer:

Explanation : We know that v = u + at where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time.

The initial velocity in the given problem is 0, final velocity is 36 and the time taken is 20 seconds.

36 = 0 + a(20)

a = 36/20

a = 1.8 m/$s^{2}$

NOTE: your question is little bit wrong, a car cannot speed up 36km/h in 2 seconds and "calculate the acceleration is correct" not velocity.