Question

A car moving at 60 km/hr comes to rest in 1 min find its acceleration

Answer 1

Answer:

Explanation:

U=60km/h

V=0

T=1min=1/4h

A=(v-u)/t

A=(0-60)/1/4

=-60*4

=-240km/h²

Hope it helps you!!!!!!!!!

Answer 2

Initial velocity of car = 60 km/hr

Final velocity of car = 0 km/hr

Time taken = 1 min = 1/60 hr

Using 1st equation of motion :-

v = u + at

=> 0 = 60 + a/60

=> a = - 3600 km/hr = - 1000 m/s

Here, negative sign indicates that the car is decelerating which is obvious.

Hope, it'll help you.....