A ball is thrown vertically upwards and then returns back to the thrower. Answer the
following questions,
i. How does the kinetic energy change when the ball comes down?
ii. When is the potential energy of the ball maximum?
iii. What happens to the kinetic energy and potential energy at half way down?
iv.
This is according to which law?
Answers
Answer:
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Answer:
1.So as the ball falls, its kinetic energy increases. It is the gravitational force that accelerates the ball, causing the speed to increase. The increase in speed also increases the kinetic energy. The process of a force changing the kinetic energy of an object is called work.
2.A ball thrown into the air has the most potential energy when it has reached the highest point above the ground before it begins descending. If we consider the vertical motion only beginning when the ball leaves the thrower's hand, the ball is exchanging kinetic energy for (gravitational) potential energy.
3.As an object falls under the influence of gravity, kinetic energy and potential energy are equal everywhere/at the halfway point only. 10. As an object falls under the influence of gravity, potential energy is greater than kinetic energy after halfway point/ before the halfway point.
4.Accord the law the necessary status in society is a task of the highest priority if we are to build a fair and just legal system.
Explanation:
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