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A pump sprays water out of a tank on a cart weighing 115 kg. The tank...

A pump sprays water out of a tank on a cart weighing 115 kg. The tank contains 61 kg, and the pump sprays out water at a rate of 1.95 kg/s that leaves with a speed of 2.26 m/s relative to the cart. The cart starts from rest.

(a) Use conservation of momentum to find the speed of the cart after the pump has been running for 20 s.

(b) What is the force on the cart at that time?

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