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Question

A lawn roller is pulled along a horizontal surface through a distance of 20 m by a rope with a force of 200 N. If the rope makes an angle of 60 with the horizontal while pulling, the amount of work done by the pulling force is:
  1. 1000J
  2. 4000J
  3. 20003J
  4. 2000J

A
1000J
B
2000J
C
4000J
D
20003J
Solution
Verified by Toppr

W.D in pulling rope =F.ds
=200×20cos600
=2000 J
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