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. %3D 12 m/s 6 m/s
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. %3D 12 m/s 6 m/s
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answer no. 6
draw the free body diagram
Transcribed Image Text: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.
12 m/s
6 m/s
7. 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 = 3o N/m, determine the velocity of the collar at s =1m.
2 m
4 m/s
k = 30 N/m
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