Question

A body is moving with velocity 30 m/s
towards East. After 10 s its velocity becomes
40 m/s towards North. The average
acceleration of body is
(1) 7 m/s?
(2) V7 m/s?
(3) 5 m/s
(4) 1 m/s​

Answer 1

u-30 metre per sec

v-40 metre pee sec

t-10sec

average acceleration - v-u divided by t

40-30 divided by 10 equals to

15 metre per sec

Answer 2

The answer is 1m/a because acceleration = v-u/t =40-30/10=1