physics
posted by beez .
A tennis ball (m 57 g) is projected vertically with an
initial speed of 8.8 m/s. (a) If the ball rises to a maximum height
of 3.7 m, how much kinetic energy was dissipated by the drag
force of air resistance? (b) How much higher would the ball
have gone in a vacuum?

518.94 J
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