Isolid iron ball of mass 770kg is used on a building site. the ball is suspended by a rope from a crane. the distance from the point of suspension to the centre of the mass of the ball is 12 m. the ball is pulled back from the vertical and then realeased, it falls through a vertical height of 1.6m and strikes the wall: what is the speed of the ball just before impact?
Answers: 1
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Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?
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If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?
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Isolid iron ball of mass 770kg is used on a building site. the ball is suspended by a rope from a cr...
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