Question

An object start from rest and accelerates by 10m/s2. What time will it take to acquire velocity of 20m/s2.

Answer 1

Explanation:

u=0 ( AS it is started from rest )

acceleration = 10 m/s

velocity= 20 m/s

so, by using,

a=v-u/t

10=20-10/t

10=10/t

t=10/10

then ,

t=1sec.