In the system below, the rope and pulley have negligible mass, and the pulley is frictionless. The two blocks have masses of 6.0 kg and 4.0 kg, as shown, and the coefficient of kinetic friction between the 6.0 kg block and the tabletop is μk = 0.230. The blocks are released from rest. <img src="//img.wizedu.com/questions/49b6d140-0fdc-11ed-ba21-d3f3af62cc14.png" title="1659167393112105.png" alt="image.png"/>a. Use energy methods to calculate the speed of the 4.0 kg block after it has descended 1.2 m. b. Use Newton's second law to calculate the speed of the 4.0 kg block after it has descended 1.2 m.

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In the system below, the rope and pulley have negligible mass, and the pulley is frictionless.

In the system below, the rope and pulley have negligible mass, and the pulley is frictionless. The two blocks have masses of 6.0 kg and 4.0 kg, as shown, and the coefficient of kinetic friction between the 6.0 kg block and the tabletop is μk = 0.230. The blocks are released from rest.

a. Use energy methods to calculate the speed of the 4.0 kg block after it has descended 1.2 m.

b. Use Newton's second law to calculate the speed of the 4.0 kg block after it has descended 1.2 m.

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genius_generous answered 1 year ago

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