Consider the system shown in the figure. The rope and pulley have negligible mas

Question

Consider the system shown in the figure. The rope and pulley have negligible mass, and the pulley is frictionless. The coefficient of kinetic friction between the 8.00-kg block and the tabletop is mu_k=0.250. The blocks are released from rest.

Use energy methods to calculate the speed of the 6.00-kg block after it has descended 1.50 m.

Consider the system shown in the figure. The rope and pulley have negligible mass, and the pulley is frictionless. The coefficient of kinetic friction between the 8.00-kg block and the tabletop is mu_k=0.250. The blocks are released from rest. Consider the system shown in the figure. The rope Use energy methods to calculate the speed of the 6.00-kg block after it has descended 1.50 m.

Explanation / Answer

T = ?m2g Change in potential energy = change in kinetic energy + work done by Tension ===> m1gh = 1/2m1(V^2-u^2) - ?m2gh ===> V^2 = 2gh + 2?m2gh/m1 ===> V = 6.26 m/s

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