the boat oars are an example of what simple machine? a screw b wheel and axle c first class lever d block…

the boat oars are an example of what simple machine? a screw b wheel and axle c first class lever d block and tackle

the boat oars are an example of what simple machine? a screw b wheel and axle c first class lever d block and tackle

Answer

Brief Explanations:

A boat - oar is a first - class lever. The fulcrum is the point where the oar is attached to the boat, the effort is applied by the rower on the handle of the oar, and the load is the water resistance against the blade of the oar. It does not match the characteristics of a screw, wheel and axle, or block and tackle.

Answer:

C. first class lever