6 kJ of work is done by a force in moving an object uniformly through 120 m in 1 minute. The force applied is:a.720 Nb.20 Nc.50 Nd.12 N
Question
What is the force applied if 6 kJ of work is done by a force in moving an object uniformly through 120 m in 1 minute?
- a. 720 N
- b. 20 N
- c. 50 N
- d. 12 N
Solution
To solve this problem, we first need to convert the work done from kilojoules to joules because the standard unit of work in physics is joules.
1 kJ = 1000 J
So, 6 kJ = 6 * 1000 = 6000 J
The formula for work done is:
Work Done = Force * Distance
We can rearrange this formula to solve for force:
Force = Work Done / Distance
Substituting the given values into the formula:
Force = 6000 J / 120 m = 50 N
So, the force applied is 50 N. Therefore, the correct answer is c. 50 N.
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