Question

A screw has a mechanical advantage of 2.0. If you use 2.0N of force and the screw goes into the wood 0.005mm, what length did you turn?

a) 0.0025mm
b) 0.010mm
c) 0.002mm
d) 0.001mm

Answer 1

The length turned can be calculated using the mechanical advantage formula, resulting in an answer of 0.010mm.

Step-by-step explanation:

The mechanical advantage of a screw is given by the ratio of the effort force (force applied to turn the screw) to the resistance force (force needed to move the screw into the wood). In this case, the mechanical advantage is 2.0, and the effort force is 2.0N.

To find the length you turned, we can use the formula for mechanical advantage: Mechanical Advantage = Length turned / Distance the screw moves.

Since the mechanical advantage is 2.0 and the distance the screw moves is 0.005mm, the length you turned can be calculated as:

Length turned = Mechanical Advantage x Distance the screw moves = 2.0 x 0.005mm = 0.01mm

Therefore, the correct answer is b) 0.010mm.