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enyata [817]
3 years ago
12

An apple in a tree has a gravitational store of 8J. As it falls, it accelerates constantly until it hits the ground. What is the

apple's maximum kinetic store?
Chemistry
1 answer:
dezoksy [38]3 years ago
7 0

Answer:

8J

Explanation:

From the question, the gravitational stored energy is 8J.

So Mgh=8J.

The kinetic energy is ?

When we use the law of conservation of energy, as the apple is moving and about to it the ground, it has 0m speed.

Which means that the potential energy at rest i.e when the apple is on the ground is zero. When the apple is getting to the ground, KE +PE is conserves.

At the top of the tree, the Apple has zero potential energy because velocity is zero at rest and on hitting the ground, the apple has kinetic energy.

So, the maximum Kinetic energy is 8J.

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