Questions
A painter of mass M stands on a platform of mass m and pulls himself up by two ropes which hang over pulley as shown in the figure. He pulls each rope with force F and moves upward with a uniform acceleration a. Find a, neglecting the fact that no one could do this for long time.
detailed solution
Correct option is C
From the figure2F+N−Mg=Ma2F−mg−N=ma4F−(M+m)g=(M+m)aa=4F−(M+m)gM+mTalk to our academic expert!
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For the system shown in figure, the pulleys are light and frictionless. The tension in the string will be
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