Question

A car travelling at a speed of 20m/s applies breaks 10s. What is the accelaration of the arand stop within

Answer 1

Answer:

2m/s

given:

initial speed - 20m/s

time - 10s

final speed - 0m/s

Formule:

initial speed - final speed

time.

solution:

= 20m/s - 0m/s

10s

= 20m/s

10s

= 2m/s. answer

hope this will help you...

Answer 2

Answer:

u=20m/s

t=10s

v=0

a=v-u/t

=0-10/20

= -2m/s