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After doing some exercises on the floor, you are lying on

Chapter 10, Problem 74P

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QUESTION:

After doing some exercises on the floor, you are lying on your back with one leg pointing straight up. If you allow your leg to fall freely until it hits the floor (Figure 10–24), what is the tangential speed of your foot just before it lands? Assume the leg can be treated as a uniform rod 0.95 m long that pivots freely about the hip.

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QUESTION:

After doing some exercises on the floor, you are lying on your back with one leg pointing straight up. If you allow your leg to fall freely until it hits the floor (Figure 10–24), what is the tangential speed of your foot just before it lands? Assume the leg can be treated as a uniform rod 0.95 m long that pivots freely about the hip.

ANSWER:

Step 1 of 3

We are required to calculate the tangential speed of your foot. This can be found considering the law of conservation of energy principle.

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