1 on a hot summer day a young girl swings on a rope above, Ask an Expert

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1. On a hot summer day a young girl swings on a rope above the local swimming hole. When she lets go of the rope her initial velocity is 2.65 m/s at an angle of 35.0° above the horizontal. If she is in flight for 1.10 s, how high above the water was she when she let go of the rope?

2. The "hang time" of a punt is measured to be 3.50 s. If the ball was kicked at an angle of 73.0° above the horizontal and was caught at the same level from which it was kicked, what was its initial speed? (Neglect air resistance.)

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