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A 2 kg box is sliding towards the edge of a table. Its speed is 5...

A 2 kg box is sliding towards the edge of a table. Its speed is 5 m/s and it is 75 cm from the edge. The coefficient of kinetic friction is 0.3 for the box on the surface. You apply a tension force to the left. What is the minimum amount of tension needed to apply via the rope to keep the box from sliding off the edge?

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Answer #1

Concept: use work energy principle to find the tension. Initial kinetic energy is nonzero but final kinetic is zero

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