Question

A block of mass m = 8 is attached to a rigid pole of length L = 2 m. if the block has a velocity of 4 m/s as it travels through the horizontal, what is the distance between the blocks lowest and highest points? Neglect the mass of the pole. neglect air resistance and any frictional forces 

          A block of mass m = 8 is attached to a rigid pole of length L = 2 m. if the block has a velocity of 4 m/s as it travels through the horizontal, what is the distance between the blocks lowest and highest points? Neglect the mass of the pole. neglect air resistance and any frictional forces
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University Physics with Modern Physics
University Physics with Modern Physics
Hugh D. Young 14th Edition
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A block of mass m = 8 is attached to a rigid pole of length L = 2 m. if the block has a velocity of 4 m/s as it travels through the horizontal, what is the distance between the blocks lowest and highest points? Neglect the mass of the pole. neglect air resistance and any frictional forces
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Transcript

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00:02 Hello guys, in this problem we have a block of mass 4 kg is being pulled on a rough horizontal surface with the pulling force of 12 nute.
00:12 The coefficient of kinetic friction between the flow and the block is 0 .2.
00:17 Now let's draw the free ball diagram for the block.
00:20 There is a horizontal force f the weight act along the vertical downward direction that is m g and a normal force from the rough surface act up along the up along vertical direction and a kinetic fictional force on the block act to the left and the kinetic frictional force has a magnitude of mu k times the normal force fn now define positive x -axis along horizontal and positive y -axis along vertical.
00:58 Now the block is in equilibrium along y direction, therefore the summation of all forces along the y will equal zero, which means the normal force fn equals m g...
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