A golf ball is struck and leaves the ground at 48 m/s on a 60 degree angle. Determine the velocity of the ball 2 seconds after it was struck

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.