By how much does the ball clear the net
A tennis player hits a ball 2.0 above the ground. The ball leaves his racquet with a speed of 21.0 at an angle 5.5 above the horizontal. The horizontal distance to the net is 7.0 , and the net is 1.0 high. By how much does the ball clear the net?
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The origin of a coordinate system is at the center of a wheel which rotates in the xy plane about its axis which is the z axis. A force F = 196 N acts at a +33.0° angle to the x axis, at the point x = 13.0 cm, y = 33.6 cm. Determine the magnit
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