Question

a body is moving with a velocity of 72 kmph its velocity is brought to 54 kmph in 10 sec. find the retardation with explanation pls fast​

Answer 1

u=72×5/18=20m/s

v=54×5/18= 15m/s

t=10

a=15-20/10=-0.5m/s sq

Answer 2

Answer:

retardation is 0.5m/s²

Explanation:

u= 72km/h =20m/s

v= 54km/h =15m/s

t= 10sec

a= v-u/t

=15-20/10m/s²

=-5/10m/s²

=-0.5m/s²

negative sign means retardation

hope this help!