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Worked Example 03

Worked Example 03

The Question

You are a member of a citizen's committee investigating safety in the high school sports program. Now you are interested in knee damage to athletes participating in the long jump (sometimes called the broad jump). The coach has her best long jumper demonstrate the event for you. He runs down the track and, at the take-off point, jumps into the air at an angle of 30 degrees from the horizontal. He comes down in a sand pit at the same level as the track 9 m away from his take-off point. With what velocity (both magnitude and direction) did he hit the ground?

The Answer

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