My problem is as follows "A 3 kg brick is dropped from a height of 1.0 m onto a nail which is vertically stuck in a plank of wood. If the nail doesn't move in much, how much heat is produced in the system when the brick hits and sticks onto the top of the nail." I know PE is 29.4J and this will convert to KE by the time it hits the nail but where does "heat" come into the picture?

asked by Brigid

16 years ago

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2 answers

The KE is converted to heat by friction on impact.

answered by bobpursley

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Thanks so much.

answered by Brigid

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Question

My problem is as follows "A 3 kg brick is dropped from a height of 1.0 m onto a nail which is vertically stuck in a plank of wood. If the nail doesn't move in much, how much heat is produced in the system when the brick hits and sticks onto the top of the nail." I know PE is 29.4J and this will convert to KE by the time it hits the nail but where does "heat" come into the picture?

2 answers

The KE is converted to heat by friction on impact.

Thanks so much.

bobpursley · Answer

The KE is converted to heat by friction on impact.

Brigid · Answer

Thanks so much.