Physics, 10.03.2021 08:10, 2alshawe201

A man uses a rod of length 5.0m to lift a 700 kg marble. The fulcrum is 0.50m from the end of the bar that is under the marble. Calculate the mechanical advantage and minimum effort required to lift the load. If the efficiency of this system is 90% determine it's velocity ratio.

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A man uses a rod of length 5.0m to lift a 700 kg marble. The fulcrum is 0.50m from the end of the ba...