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ECAT Physics QUESTION #734
Question 1
If a body of 2 kg moves vertically 2 m then work done is:
  • -39.2 J✔️
  • 20 J
  • 45 J
  • 35 J
Correct Answer Explanation
Work done against gravity = mgh = 2 x 9.8 x 2 = 39.2 J. Since work is done against gravity it is taken as -39.2 J.