Question
A weightlifter lifts s a weight of 500N fr om the g round over her head , a distance of 1.8m. How much work has been done to move the weight? Enter a number
Answer
3.8
(279 Votes)
Efa
Elite · Tutor for 8 years
Answer
Using the formula
where
N and
m, we get:### **Work = 500 \times 1.8 = 900 \) So, the work done to move the weight is
Joules.
Explanation
## Step1: The problem involves calculating the work done by the weightlifter in lifting a weight. The work done in lifting an object against gravity is given by the formula:### **Work = Force x Distance**where: - Force is the force applied to move the object, and - Distance is the distance over which the force is applied.## Step2: We substitute the given values into the formula:- The force
N, and - The distance
m.## Step3: Substituting these values into the formula gives:### **Work = 500 \times 1.8**## Step4: Calculating the above expression gives us the work done in lifting the weight.