Question

Calculate work done by a car when it slows down from 5m/s to 2m/s the mass of a car is 1500kg

Answer 1

Hey here is your answer

V= 2m/s ( final velocity)

U = 5m/s ( initial velocity)

Mass= 1500kg

:) work done = change in kinetic energy

:( work done = 1/2m  (v^2-u^2 )

                     = 1/2×1500×( 4- 25)

                      = 1/2×1500×-21

                          = -1575 Joules