Answer :
The block and tackle system with seven supporting strands provides a mechanical advantage of 128. With the motor capable of providing 150 lb of force, it can easily lift the metal lathe in the manufacturing facility.
A block and tackle system is a mechanical advantage system that allows you to lift heavy loads with less force by using multiple pulleys. In this case, you have a system with seven supporting strands. To calculate the effective mechanical advantage (MA) of the block and tackle system, you can use the formula:
MA = 2ⁿ
Where:
MA is the mechanical advantage.
n is the number of supporting strands.
In your case, n is 7, so:
MA = 2⁷ = 128
This means that the block and tackle system provides a mechanical advantage of 128. It means that for every 1 lb of force applied by the motor, you can lift a load that weighs 128 lbs.
Given that the motor can provide 150 lb of force, it should be capable of easily lifting the metal lathe in the manufacturing facility with the block and tackle system.
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