Asked by Bira

A ball is tossed upward and returns to its original position after 19.7 seconds. If another ball is thrown at an angle of 41.4 degrees above the horizontal, at what speed, in m/s, must it be thrown such that it returns to the same height at the same time as the first ball?
Answered by Chanz
Solve for vi straight up first. Divide that by sin41.1.