Q1. A 1700 kg car is travelling at 120 m/s while the driver takes his foot off the gas pedal. The car eventually rolls to the stop after 452 meters. Find the force of friction acting on car.
Q2. A baseball pitcher throws a ball at 43 m/s to a catcher 17m away. How far does the ball drop by the time it gets to catcher?
Q3. At a construction site, a 63.0 bucket of concrete hangs from a light (but strong) cable that passes over a light friction-free pulley and is connected to an 83.0 box on the horizontal roof. The cable pulls horizontally on the box, and a 45.0 bag of gravel rests on top of the box. The coefficients of friction between box and roof are shown. The system is not moving.