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A soccer ball flying through the air in free fall at some height above the ground has a kinetic energy of and gravitational potential energy relative to the ground of . Later, the ball has moved to a different position where its kinetic energy is . What is the gravitational potential energy of the ball relative to the ground at this second location in SI units?

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John Edward Cayas
John Edward CayasLv10
20 Dec 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A feather which has a mass of 3g is dropped from a height of 2 meters above the ground. When it reaches the ground, its speed is 1.2 m/s. Calculate the initial amount of gravitational potential energy of the feather, the kinetic energy of the feather right before it hits the ground, the amount of mechanical energy that was lost as the feather fell to the ground, and the average force of air resistance on the feather. Then, draw a diagram of the feather which includes the following information: the initial gravitational potential energy of the feather, the kinetic energy of the feather right before it hits the ground, and the amount of thermal energy acquired by the feather and the atmosphere.

Consider the accompanying diagram. Ball A is allowed to fall and strike ball B. Assume that all of ball A’s energy is transferred to ball B at point I and that there is no loss of energy to other sources. What is the kinetic energy and the potential energy of ball B at point II? The potential energy is given by PE = mgz, where m is the mass in kg, g is the gravitational constant (9.81 m/s^2), and z is the distance in meters.

Two balls having different masses reach the same height when shot into the air from the ground.

If there is no air drag, which of the following statements must be true? (More than one statement may be true.)

A. Both balls left the ground with the same speed.
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C. Both balls will have the same gravitational potential energy at the highest point.
D. The heavier ball must have left the ground with a greater speed than the lighter ball.
E. Both balls have no acceleration at their highest point.

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