A weightlifter lifts a weight of 500N from the ground over her head, a distance of 1.8m. How much work has been done to move the weight?
900 J
Work done
= increase in potential energy
= mgh.
Take out your calculator and find the work done
mg=500 N (newton is in force units)
h=1.8m
Resulting work done is in joules.
To calculate the work done in moving the weight, we can use the formula:
Work = Force × Distance
In this case, the force exerted is the weight of 500N, and the distance over which it is lifted is 1.8m.
So, the work done is:
Work = 500N × 1.8m
To get the answer, we simply multiply these two values:
Work = 900 Joules
Therefore, the work done to move the weight is 900 Joules.