Answer:
1275J
Explanation:
Given parameters:
Force on box = 85N
Distance moved = 15m
Unknown:
Work done = ?
Solution:
Work done is the amount of force applied on a body to move it through a specific distance.
Work done = Force x distance
Now insert the parameters and solve;
Work done = 85 x 15 = 1275J
It takes him
t = 16 miles / 156 mph = 0.1 hours
Answer:
The force required to pull a wagon if 84 J of work are exerted to pull a wagon 7m is 12 Joules.
HOW TO CALCULATE WORK DONE:
Work done can be calculated by multiplying the force applied on an object by the distance traveled. That is;
Work done = Force × distance
Force = Work done ÷ distance
According to this question, the work done is 84J and the wagon was pulled to a distance of 7 metres. The force is calculated as follows:
Force = 84J ÷ 7m
Force = 12N.
Therefore, the force required to pull a wagon if 84 J of work are exerted to pull a wagon 7m is 12 Joules.