Question

A block and tacle of 6 pulley is used to raise a load of 300n steadily through a height of 30m if the workdone against friction is 2000j. calculate the workdone by the effort,the applied effort,the efficiency of the system
work accomplished = 300*30
= 9,000 J

applied work = 9,000 + 2,000 = 11,000 Joules

efficiency = 100 * work accomplished/work applied

= (9/11)100 = 81.8 %

force applied = (300/6)/.818
= 61.1 N
assuming that the 6 in your question refers to mechanical advantage
Yes
Explain pls
Yes

Related Questions

Topic:machine,a block and tackle of 6 pulleys is used to raise a load of 300N steadily through a hei... A pulley system os being used to raise a load. The rope begins at the ceilings, goes down, round a p... A block and tackle of 6 pulley is used to raise a load of 30N steadily through a height of 3m. If t... In using a pulley system, an effort of 100N is needed to raise steadily a load of 800N through a dis...