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A pulley system lifts a

A pulley system lifts a 500-lb block 1.0 foot with an effort of only 50 lb. If the 50 lb moves 30 feet, calculate the efficiency
1. 1 answer
2. asked by Isis
3. 1,090 views
A puppy tugs with a force of 45N to pull a rope on a pulley. This lifts his 90N bag of dog food. What is the mechanical
1. 1 answer
2. 80 views
A stage crew member uses a pulley system to lift scenery for the school play. If he does 750 J of work and the pulley system
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2. asked by LanguadeHarts
3. 100 views
A pulley system os being used to raise a load. The rope begins at the ceilings, goes down, round a pulley on the load, up to a
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2. asked by Alex
3. 676 views
A person pulls the rope in pulley C by 3 meters and lifts the load by 1 meter using the equation for work , how much work is
1. 1 answer
2. 25 views
A person pulls the rope in pulley C by 3 meters and lifts the load by 1 meter. Using the equation for work, how much work is
1. 1 answer
2. 30 views
At CHMSC Mechanic Shop a pulley system is used to lift engines from cars. The pulley system consists of a cable that goes around
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2. asked by Jel
3. 174 views
1. Determine the effort required to lift a load of 100 N using:(a) Using a single fixed pulley (b) A single movable pulley (c)
1. 2 answers
2. asked by Mustafa khamis shaaban
3. 594 views
A pulley system on a pier is used to pull boats towards the pier for docking. Suppose that a boat is being docked and has a rope
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2. asked by Ryan
3. 739 views
1. A ball moving horizontally clears a net 2 meters high. What maximum speed can it have if it is to fall within 5 meters of the
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2. asked by mimi
3. 815 views