A Baseball Pitcher Is Employing a Ballistic Pendulum to Determine

Short Answer

A baseball pitcher is employing a ballistic pendulum to determine the speed of his fastball.
A 3.3-kg lump of clay is suspended from a cord 2.0 m long. When the pitcher throws his
fastball aimed directly at the clay, the ball suddenly becomes embedded in the clay and
the two swing up to a maximum height of 0.080 m. If the mass of the baseball is 0.21 kg,
find the speed of the pitched ball.