Q. A tank is in the shape of an inverted cone, having height h = 2.50 m and base radius r = 0.750 m. If water is poured into the tank at a rate of 15 L/s, how long would it take to fill the tank?
Q. The pulley system is used to lift a 52-{rm kg} crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Suppose the masses of the chains, pulleys, and ropes are negligible. Verify the force vec F required to lift the crate with constant speed.