A 0.4 kg rubber ball has a horizontal velocity of 1.554 m/s at point A and goes through a projectile motion until it hits a smooth floor at point B. It then bounces off and reaches another peak in its trajectory at point C. The ball hits the smooth floor with an impact which has a coefficient of restitution of 0.8 in a very short span of time.   Which of the following best approximates the speed of the ball just after it bounces off the floor for the first time? Which of the following best approximates the value of DISTANCE h?

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A: Given:mH=750 kgmP=2500 kgH=2.5 mh=0.15 m

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Q: In the selection of the ram of a pile driver, it is desired that the ram lose all of its kinetic…

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Q: velocity of balls.

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Q: 4. A 750 kg hammer is used to drive a 2500 kg pile into some loosely packed sand. The hammer is…

A: mH= 750kg, mp= 2500kgv2= u2+2as0  = u2- 2×9.81×2.5 u= 7.003m/secwhere u is the velocity of hammer…

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Q: Question 2: A 40 lb suitcase slides down a 20ft ramp with an initial velocity of va= 10 ft/sec. The…

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Q: A ball of mass 5 kg dropped from a five meter height on a smooth floor. If the coefficient of…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

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Q: In the selection of the ram of a pile driver, it is desired that the ram lose all of its kinetic…

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.