Which movement has the greatest net work done?

  • Thread starter songoku
  • Start date
  • Tags
    Net Work
  • #1
songoku
2,352
340
Homework Statement
Please see below
Relevant Equations
W = F.d
1717897815283.png


My answer is (D) but the answer key is (C).

My reasoning is that the net work for (A), (B) and (C) are all zero since the object moves with constant speed so the resultant force is also zero. What is the mistake in my reasoning?

Thanks
 
Physics news on Phys.org
  • #2
Have you considered the possibility that the answer key might be in error?
 
  • Like
Likes songoku
  • #3
kuruman said:
Have you considered the possibility that the answer key might be in error?
Yes, but knowing me, it is better to ask for confirmation here.

Thank you very much kuruman
 
Back
Top