Question

A scooter travelling at 10 m/s speed up to 20 m/s in 4 sec. Find the acceleration of train.

Answer 1

u =intial velocity =10m/s
v =final velocity =20m/s
t=4sec
acceleration =(v-u)/t
acc.=(20-10)/4
acc.=10/4=2.5m/s²

Answer 2

Hey ! 

u = 10m/s 

v = 20 m/s 

t = 4 sec

a = (v-u)/t 

a = 20 - 10 / 4 

a = 10 / 4 

a = 2.5 m/s²