A tennis ball of mass 60 g approaches a racket horizontally at 25 m/s and rebounds in…
PHYSICS · Multi-part · CBSE · Physics · Force and Laws of Motion · Force and Laws of Motion
Problem
A tennis ball of mass 60 g approaches a racket horizontally at 25 m/s and rebounds in the opposite direction at 40 m/s. The time of contact with the racket is 5.0 ms.
(a) Determine the magnitude and direction of the average force exerted on the ball by the racket.
(b) A second identical tennis ball experiences the same reversal of velocity but the racket can exert a maximum average force of 800 N. Calculate the minimum contact time required so that the force on the second ball does not exceed this limit.