Tennis Practice Walls
When you practice tennis by serving balls against a brick wall your typical serve hits the wall at 30 m/s. ?
The coefficient of restitution of the tennis ball is 0.75.
What fraction of the ball’s incoming kinetic energy remains after the collison with the wall? Answer in percent
speed of ball on return = 0.75 x 30 = 22.5m/s
KE = 1/2mv^2
KEbefore = 1/2 m 30^2
KE after = 1/2 m 22.5^2
Fraction of KE remaining = 22.5^2/30^2 = 0.56 or 56%
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SKLZ PowerBase Tennis Trainer $22.49 SKLZ PowerBase Tennis Trainer is the ideal practice tool for improving your entire set of tennis skills without a net, court, or partner. With the sturdy non-slip base and no-tangle Kinetic Cord, you get hours of continuous practice to get your game and body in shape. Not only can you improve all your tennis strokes, you can maximize your speed and cardio while building quickness, hand-eye coordin… |
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Bounceback Trainer $69.99 The Jaques Bounceback trainer is the perfect catching aid which also helps the development of hand to eye coordination. This wonderful Bounceback trainer has been manufactured using a robust weather coated steel frame and a strong net which is attached to the frame using coated steel springs. The Jaques Universal Bounceback trainer comes complete with detailed assembly instructions. Ideal for s… |
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Tennis PRO Backboard (Flat) $49.99 The Tennis PRO Backboard utilizes a shallow pyramid design to change the angle of return for a tennis ball. While other backboards promote consistent or even softer returns, the Tennis PRO Backboard’s design promotes realistic gameplay and challenges players to improve their game. Each wall is made up of individual 2′ by 2′ square panels available in “Pyramid” style or “Flat” style which can be a… |
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Tennis PRO Backboard (Pyramid) $49.99 The Tennis PRO Backboard utilizes a shallow pyramid design to change the angle of return for a tennis ball. While other backboards promote consistent or even softer returns, the Tennis PRO Backboard’s design promotes realistic gameplay and challenges players to improve their game. Each wall is made up of individual 2′ by 2′ square panels available in “Pyramid” style or “Flat” style which can be a… |
