A sliding block on a frictionless table has a mass of 0.850 kg. The hanging counterweight...

A sliding block on a frictionless table has a mass of 0.850 kg. The hanging counterweight has a mass of 0.420 kg, and the pulley is a “uniform solid cylinder” with a mass of 0.350 kg and outer radius, r = 0.0300 m. The pulley turns without friction on its axle. The essentially massless cord does not stretch and does not slip on the pulley. The block has a velocity of 0.820 m/s toward the pulley as it passes through photogate 1. (16 pts.total)

Use Conservation of Total Energy, E_T,i = E_T,f, to predict the speed of the block after it passes through photogate 2 which is 0.700 m away from photogate 1.

b) Find the angular speed of the pulley at the moment the block passes Photogate 2. (6 pts.)

c) Suppose the coefficient of kinetic friction between the block and the horizontal surface was

0.250, find the new speed of the block after it has moved to a photogate 2. (3 pts.)

Solutions

Expert Solution

genius_generous answered 1 year ago

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