How does a pulley help transfer mechanical energy?
A. It spreads the load out over two sides, making the load feel lighter.
B. It shifts the load to one side so the load is only heavier on one side instead of both.
Neither option A nor B accurately describes how a pulley helps transfer mechanical energy.
A pulley is a simple machine that consists of a grooved wheel and a rope or belt running along the groove. It is used to change the direction of a force and to transmit mechanical energy. When force is applied to one end of the rope, it causes the pulley to rotate and allows the transfer of mechanical energy from the input side to the output side.
The correct answer would be:
C. It changes the direction of the force applied, allowing for the transfer of mechanical energy.