At a football game, an air gun fires t-shirts into the crowd. the gun is fired at an angle of 46 degree from the horizontal with an initial speed of 27 m/s. a fan who is sitting 60 m horizontally from the gun, but high in the stands, catches a t-shirt. a) how long does it take for the t-shirt to reach the fan? b) at what height h is the fan from the ground?

Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)