Question
A construction worker uses a pulley system to lift a block. What is one of the purposes of the pulley system?
A. to increase the force needed to move the block
B. to increase the energy needed to move the block
C. to reduce the time needed to move the block
D. to change the direction of the force needed to move the block
A. to increase the force needed to move the block
B. to increase the energy needed to move the block
C. to reduce the time needed to move the block
D. to change the direction of the force needed to move the block
Answers
Answered by
GPT 3.5
D. to change the direction of the force needed to move the block