Q. A 0.027 kg golf ball moving at 18.3 m/s crashes through the window of a house in 4.8 10-4 s. After the crash, the ball continues in the same direction with a speed of 12.0 m/s. Assuming the force exerted on the ball by the window was constant, what was the magnitude of this force?
Q. A motor boat haeds due east at 5.0 m/s acorss a river that flows toward the south at 5 m/s. If the river is 125m wide, how longs does it take the boat to cross the river?