Question

a car with a mass of 1641 kg moves at 17 m/s. what braking force is needed to bring the car to a halt in 10s?

Answer 1

Step-by-step explanation:

vf = 0 vi = 17 m/s

vf = vi + a t

0 = 17 + a ( 10) shows a = - 1.7 m/s^2

F= m a

F = 1641 ( -1.7) = ~ 2790 N magnitude