Using a crowbar or some other lever to move a large log is easier than lifting it up with your hands. Does this mean that because of the crowbar or other lever you are doing less work? Explain your answer
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Answer:
Does this mean that because of the crowbar or other lever you are doing ... lever to move a large log is easier than lifting it up with your hands.
Answer:
A lever is a simple machine that consists of a rigid bar supported at one point, known as the fulcrum. A force called the effort force is applied at one point on the lever in order to move an object, known as the resistance force, located at some other point on the lever. A common example of the lever is the crow bar used to move a heavy object such as a rock. To use the crow bar, one end is placed under the bar, which is supported at some point (the fulcrum) close to the rock. A person then applies a force at the opposite end of the crow bar to lift the rock. A lever of the type described here is a first-class lever because the fulcrum is placed between the applied force (the effort force) and the object to be moved (the resistance force).
Read more: Simple Machines - Levers - Force, Fulcrum, Resistance, and Effort - JRank Articles https://science.jrank.org/pages/4053/Machines-Simple-Levers.html#ixzz7Tsf788C1