How do you do this Physics problem?
When a 58 g tennis ball is served, it accelerates from rest to a constant speed of 50 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 46 cm. What is the magnitude of the net force acting on the ball?
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We know Fnet=ma. You have the mass of the ball, (remember to convert to kilograms), now you need the acceleration. It is constant acceleration which means we can use the formula, 2as=v^2 - u^2. Where s is the displacement in meters and u is the initial velocity. the initial velocity is 0 so you dont have to worry about that. You know the displacement while it was accelerating, remember to convert to meters though. and you know the final velocity. so you can solve for acceleration. once you do, plug it in to Fnet=ma and you have your answer. hope this helped.