A Baseball Pitcher Is Employing a Ballistic Pendulum to Determine $3.3 - \mathrm { kg }$

question 21

Short Answer

A baseball pitcher is employing a ballistic pendulum to determine the speed of his fastball. A $3.3 - \mathrm { kg }$ 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.

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Definitions:

Piaget

Jean Piaget, a Swiss psychologist known for his pioneering work in child development, particularly his theory of cognitive development.

Preoperational

A stage in cognitive development, according to Piaget, where children are unable to perform operations and display egocentric thinking.

Concrete Operational

A stage in cognitive development where children gain the ability to think logically about concrete events.

Left Knee Replacement

A surgical procedure to replace the diseased or damaged parts of the left knee joint with artificial components to relieve pain and restore function.