Question

pulley system with three pulleys is having efficiency of 75% .If a load of 400 N is lifted to 5m in 5 seconds then the [4] i)The M.A. of the pulley system A.2 B.2.25 C.2.5 D.3 ii) The VR of the pulley system A.2 B.3 C.4 D.5 iii) Power output of the machine A.100 W B.200 W C.300 W D.400 W iv.Work output by the machine A.2000 J B.1000 J C.500 J D.100 J​

Answer 1

Answer:

ask the question in your own words so it will be easy to answer and mark me as brainliest