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A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.70 m/s at an angle of 21.0° below the horizontal. It strikes the ground 6.00 s later.
(a) How far horizontally from the base of the building does the ball strike the ground?
_____ m
(b) Find the height from which the ball was thrown.
_____m
(c) How long does it take the ball to reach a point 10.0 m below the level of launching?
_____s
A gymnast with mass m1 = 41 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 108 kg and length L = 5 m. Each support is 1/3 of the way from each end. at least the gymnast stands at the left end of..
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