Question

calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 km per hour lesson work and energy

Answer 1

W=f×s

F=ma

=1500×60

=90000

Answer 2

Hey there!

Given,

Mass of car (m) = 1500 kg

Velocity of car ( v) = 60 km/h = 60 * 5/18 m/s

Work done = ?

Here,

Work done = Kinetic Energy

                  = 1/2 * mv²

                  = 1/2 * 1500 * 60 * (5/18) J

                  = 20.8 × 10⁴ J (←Answer)

Hope It Helps You!