Physics, 05.05.2020 07:28 robert7248

You wish to lift a 400 lb car engine a vertical distance of 3 ft using a strong rope. Unfortunately, your hand crank winch can only generate 100 lb of tension in your rope. In order to overcome this obstacle, you use a multiple pulley system (block and tackle) to lift the engine.

What is the mechanical advantage of this system?

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You wish to lift a 400 lb car engine a vertical distance of 3 ft using a strong rope. Unfortunately,...