Question
A lever is used to lift an object. The input force is 30 N and the work done is 15 J. Calculate the distance the lever moves. Use the equation: work done =× distance moved in the direction of the force Enter number m
Answer
4
(217 Votes)
Vance
Elite · Tutor for 8 years
Answer
To start, with let's first acknowledge we need to find the distance that the lever moves, symbolized with D.According to the given equation: work done = Force * distance moved in the direction of the force.So we must identify and plan how to calculate the unknown distance(i.e., D).The values given in the problem are:- Input Force (F):
,- Work Done (W):
,Rearranging the provided formula to find the distance (D) :
We just need to substitute the known values:
Doing the computation, we find that the distance (D) is 0.5 meters.【Answer:】The lever moves for
.