Question

A motorcycle starts from rest and gains a velocity of 20 m/s after 4 seconds. Find its acceleration.​

Answer 1

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A car starts from rest and gains velocity of 20 m/s in 10 seconds. Find its acceleration.

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$initial \: \: velocity \: \: (u)=0$

$final \: \: velocity \: \: (v)=20$

$time \: (t) \: = \: 4$

$acceleration(a)= \frac{v - u}{t}$

=20 -0 / 4 ms²

=20 /4 ms²

=5ms²

I hope it helps シ︎

Answer 2

Explanation:

v=u+at

v=20m/s

a=?

t=4sec

initial velocity =0m/s

v-u/t=a

20-0/4=a

a=5m/s^2