Its mass M1 slides on a 45degree oblique surface and its height is H, as shown. The mass is connected by a flexible rope, the mass of which is neglected over a small ball (neglect its mass) and connected to another mass M2 , its mass is equal to the mass of the mass hanging over the head, as shown in the figure below. The rope is long enough to be  Height H / 2 The dimensions of the blocks and the reel are neglected compared to the height H The two masses were left free at time t = 0 a- At  t> 0, find the vertical acceleration of the M2  block? b-Which of the two blocks will move down? Calculate the time t1 that will hit the Earth? c- If the block in the previous paragraph stopped when it hit the ground, but the other block continued to move, explain whether it will hit the pulley or not and why?

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Its mass M1 slides on a 45degree oblique surface and its height is H, as shown. The mass is connected by a flexible rope, the mass of which is neglected over a small ball (neglect its mass) and connected to another mass M2 , its mass is equal to the mass of the mass hanging over the head, as shown in the figure below. The rope is long enough to be  Height H / 2 The dimensions of the blocks and the reel are neglected compared to the height H The two masses were left free at time t = 0

a- At  t> 0, find the vertical acceleration of the M2  block?

b-Which of the two blocks will move down? Calculate the time t1 that will hit the Earth?

c- If the block in the previous paragraph stopped when it hit the ground, but the other block continued to move, explain whether it will hit the pulley or not and why? 

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