A car of mass 1500 kg is moving with a speed of 50 km/h (13.89 m/s). Determine the kinetic energy T of the car.
(see options a through d in attached file)
Now determine the force required to stop the car at a distance of 50 m, if the kinetic energy T is 1.447 x 10E5 N-m. 10E5 means 10 to the 5th power.
a. 1447 N
b. 2894 N
c. 3000 N
d. 5000 N
Solution attached as a Word document shows how to calculate the kinetic energy of a moving car, and then how much force will be necessary to stop it.