Question

A body is moving vertically upwards . Its velocity changes at conatant rate from 50 m/s to 20m/s in 3 sec . What is its acceleration

Answer 1

initial velocity,u= 50m/s
final velocity, v= 20m/s
time, t = 3 s
acceleration= v-u/t
= 20-50/3
= -30/3
= -10m/s^2.

Answer 2

U=50m per sec

V=20m per sec

T=3sec

A=(v-u)/t

=(20-50)/3

=-30/3

=-10m/s^2

Hope it helps u