Question

A fixed, single pulley that is used to lift a block does which one of the following?

A. doubles the force required to lift the block

B. decreases the force required to lift the block

C. makes the block easier to lift by changing the direction of the force needed to lift it

D. decreases the force required and changes the direction of the force required

I think it is C..?
B for sure
WHAT IS THE ANSWER........... i thought you were supposed to tell us the answer??

Related Questions

How much rope will be needed to lift a load 48m in a single fixed pulley system if the effort is 63n... Efficiency of a single fixed pulley is 85%.what effort is needed to lift a load of 85kgf using it? determine the effort required to lift a load of 100N using a single fixed pulley 1. Determine the effort required to lift a load of 100 N using: (a) Using a single fixed pulley...