A child applies a force F parallel to the x -axis to a 10.0-kg sled moving on th

Question

A child applies a force F parallel to the x -axis to a 10.0-kg sled moving on the frozen surface of a small pond. As the child controls the speed of the sled, the x -component of the force she applies varies with the x -coordinate of the sled as shown in the figure.

1. Calculate the work done by the force F when the sled moves from x=0 to x=8.0m.

2. Calculate the work done by the force F when the sled moves from x=8.0m to x =12.0m.

3. Calculate the work done by the force F?  when the sled moves from x=0 to x =12.0m.

Explanation / Answer

work = F.S area under curve

a) W= 40 Joule
b) W=20 Joule
c) W=60 Joule

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.