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# Consider the system shown in Fig. P6.81. The rope and ISBN: 9780321675460 31

## Solution for problem 86P Chapter 6

University Physics | 13th Edition

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Problem 86P

Consider the system shown in Fig. P6.81. 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 µk = 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. Fig. P6.81

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Solution 86P According to mass- energy theorem, the sum of kinetic energy of the whole system and the frictional force energy is equal to the potential energy. Therefore, the necessary condition is, Kinetic energy + Energy due to force of friction = Potential energy …..(1) Kinetic energy of the system is = 1 × (8 + 6) × v ( let v be the speed) 2 2 Kinetic energy = 7v …..(2) The force of friction is = k 8 × 9.8 N...

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##### ISBN: 9780321675460

The full step-by-step solution to problem: 86P from chapter: 6 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. Since the solution to 86P from 6 chapter was answered, more than 724 students have viewed the full step-by-step answer. This full solution covers the following key subjects: Block, pulley, fig, mass, consider. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. This textbook survival guide was created for the textbook: University Physics, edition: 13. The answer to “Consider the system shown in Fig. P6.81. 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 µk = 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. Fig. P6.81” is broken down into a number of easy to follow steps, and 60 words. University Physics was written by and is associated to the ISBN: 9780321675460.

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