5. The acceleration of a body of mass 5 kg pulled on a horizontal surface by a force of 70 N when the coefficient of kinetic friction is 0.4 is...
A. 19.6 m/s?
B. 50.4 m/s?
C. 10.1 m/s?
D. 14.0 m/s2​

A10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. they are then released so that the spring pushes the two carts apart. the 10.0 kg cart is moving at 4.5 m/s afterward. how fast is the 15kg cart moving? 3.0 m/s 2.0 m/s 4.5 m/s 5.0 m/s

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

The total amount of energy contained in an object