Question

a car covers 15m after brakes are applied to stop from its initial speed of 54 km/hr calculate its acceleration​

Answer 1

Answer:

15m/s²

Explanation:

let the initial speed be velocity (initial)

initial velocity = 54km/h = 15m/s

final velocity = 0km/h

distance = 15m

time = distance

speed

time = 15/15

= 1s

acceleration = (v-u)

t

acceleration = (0-15)

1

acceleration = -15m/s²