A bicyclist is stopped at the entrance to a valley, as sketched below: Where wou

Question

A bicyclist is stopped at the entrance to a valley, as sketched below: Where would the bicyclist have the highest potential energy? Where would the bicyclist have the lowest potential energy? Where would the bicyclist have the highest kinetic energy? Where would the bicyclist have the highest speed? Would the bicyclist's kinetic energy be higher at B or C? Would the bicyclist's potential energy be higher at B or C? Would the bicyclist's total energy be higher at B or C? Suppose the bicyclist lets off the brakes and coasts down into the valley without pedaling. Ever if there is no friction or air resistance to slow him down, what is the farthest point the bicyclist could reach without pedaling?

Explanation / Answer

Potential energy = energy due to its position

Kinetic energy = energy due to its movement./ Speed

1. At F point highest potential energy because it is top most point of the path.

2. At D point lowest potential energy because it is the lowest point of path.

3. At point B it will have highest kinetic energy because the whole potential energy of point A is converted to kinetic energy

4. At point B it will have highest speed due to the conversion of all potential energy into kinetic energy.

5. Kinetic energy is higher at B. C is above the B and few part of energy is converted into potential.

6. C Will have highest potential energy because it's position is above than the B

7. Total energy remains constant both will have same energy.

8. At point E . Because energy remains constant

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