A child starts at the top , from rest, and slides down each of the frictionless

Question

A child starts at the top , from rest, and slides down each of the frictionless slides shown below. On which slide does the child have the largest speed upon reaching the bottom? ( Hint, consider the conservation of energy).

7. (5 points) A child starts at the top, from rest, and slides down each of the frictionless slides shown below. On which slide does the child have the largest speed upon reaching the bottom? int, consider the conservation of energy 2013 Pearson Education, Inc B. b D. d E. All slides result in the same final speed.

Explanation / Answer

The answer is E.

From law of conservation of energy the total potential energy at the top is equal to total kinetic energy at the bottom.

That is 1/2 mv2 = mgh

This question is same for all above cases, since vertical height is same.

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