*AWARDING MEDAL* A scientist is using a pulley in a laboratory. If the resistance force is 40 Newtons and the effort force is 20 Newtons, what is the mechanical advantage?
A. 1
B. 2
C. 3
D. 4

Question

*AWARDING MEDAL* A scientist is using a pulley in a laboratory. If the resistance force is 40 Newtons and the effort force is 20 Newtons, what is the mechanical advantage?
	A.	1
	B.	2
	C.	3
	D.	4

anonymous · Answer

B

anonymous · Answer

To calculate the mechanical advantage of a lever what two pieces of information do you need?
	A.	effort force and fulcrum weight
	B.	resistance force and length of effort arm
	C.	effort force and the length of effort arm
	D.	the length of the effort arm and the length of the resistance arm

anonymous · Answer

I'm gonna go for alternative B here too..