3. Sailors use a capstan (shown below) to raise and lower the anchor. It takes two sailors located 1 meter from the center to turn the capstan.
How far from the center would one sailor have to be to turn the capstan by himself?
A 1 meter
B. 2 meters
C.3 meters
D. Both B and C would work

B. 2 meters.

Explanation:

To rotate the capstan a certain amount of torque is required, and if each sailor applies a force at a distance from the center, then for two sailors the total torque will be

;

therefore,  for one sailor to apply the same torque it must be that the torque he applies must be equal to the torque that the two sailors applied:

which gives

.

and since ,

which is choice B.

would be false hope this out

hi i’m sorry to call us today so we will get back with y’all and we will have to do it haha omg was the day