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Standard X
Physics
Work
Question

A block of mass 10 kg, a force 20N is applied to the block and it displaced the block by 4 m. If angle between force and displacement is 900. Calculate the work done by force.

  1. 0 J
  2. 80 J
  3. 2,400 J
  4. 600 J
  5. 60 J

A
600 J
B
0 J
C
2,400 J
D
60 J
E
80 J
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Solution
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The correct option is A 0 J
Work done by force on the block=W=→F.→s=Fscosθ=Fscos90∘=0J

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