Question

Calculate the force required by a car to change its velocity from 30m/s to zero in 10second mass of car is 1500kg

Answer 1

Explanation:

u=30 m/s

v=0 m/s

t=10 s

m= 1500 kg

F= ma

=m × v-u/t

=1500 × 0-30/10

F= -4500 N

negative sign indicates that force applied is opposite to the direction of motion