6. At the instant shown, point P on the cable has a velocity Vp = 12 m/s, which is increasing at a rate of ap = 6 m/s'. Determine the power input of motor M at this instant if it operates with an efficiency E = 0.8. The mass of block A is 50 kg. P12 m/s 6 m/s M The 2-kg collar is given a downward velocity of 4 m/s when it is at A. If the spring has an unstretched length of 1m and a stiffness of k = 30 N/m, determine the velocity of the collar at s =1m. 7. 2 m 4 m/s k = 30 N/m

6. At the instant shown, point P on the cable has a velocity Vp = 12 m/s, which is increasing at a rate of ap = 6 m/s'. Determine the power input of motor M at this instant if it operates with an efficiency E = 0.8. The mass of block A is 50 kg. P12 m/s 6 m/s M The 2-kg collar is given a downward velocity of 4 m/s when it is at A. If the spring has an unstretched length of 1m and a stiffness of k = 30 N/m, determine the velocity of the collar at s =1m. 7. 2 m 4 m/s k = 30 N/m

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Conservation Of Energy

Section: Chapter Questions

Problem 62P

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