You kick a brick sitting on the sidewalk (ouch!) and the brick slides 2.00 m before...

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You kick a brick sitting on the sidewalk (ouch!) and the brick slides 2.00 m before...

You kick a brick sitting on the sidewalk (ouch!) and the brick slides 2.00 m before coming to a stop. The kinetic friction coefficient between brick and sidewalk is μ_k = 0.64. The total amount of work done on the brick (from just before your kick to just after it stops) is...

		... zero.
		... -12.5 J
		... 12.5 J.
		... impossible to calculate because the mass of the brick is not known.

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Answer 1

Answer #1

impossible to calculate because the mass of the brick is not known.

So 4th option is correct.

PLEASE UPVOTE

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Answer 2

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