a ball of mass 0.2kg is fropped from a height of 10m how much mechanical energy does it have right before it hits the ground assume there is no air resisstance

Question

Emerson Montoya

Physics

9 November, 08:22

a ball of mass 0.2kg is fropped from a height of 10m how much mechanical energy does it have right before it hits the ground assume there is no air resisstance

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Answers (1)

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Julien Friedman · Answer 1

20 Joules

Explanation:

Mechanical Energy is the sum of kinetic and potential energy.

Since energy can only be transferred and cannot be lost, kinetic energy=potential energy.

Now we only need to use one of the formulas to find the answer. In this answer I'll be using the formula for potential energy which is mass * gravitational field strength * height.

Substitute the values in and using gfs=10, the answer will be 20J.