Question

Vehicle starting rest 20m/s after 10s. What its acceleration

Answer 1

V=0m/s

U=20m/s

T=10sec

a=v-u/t

=(0-20)/10m/s

=-20/10m/s

=-2m/s

Hope it it will help you

Answer 2

Answer:

Explanation:The body is starting from rest.Therefore, initial velocity is 0m/sec

Final velocity is 20 m/sec.

Time taken by the body is 10 sec.

Now, accelaration=final vel. - initial vel./time taken

Therefore, a= (20 - 0 /10)m/s×s

=(20/10)m/s×s

=2 m/s×s