How much work is needed to move a refrigerator

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Q. A 1.87 m tall basketball player wants to make a goal from 10.6 m from the basket.

If he shoots the ball at a 42.5 angle, at what initial speed must he throw the basketball so that it goes through the hoop without striking the backboard? The height of the basketball hoop is 3.05 m.

Q. The third floor of a house is 7.0 m above street level. How much work is needed to move a 120-kg refrigerator to the third floor?

Reference no: EM1363229

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