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Q: A girl whose weight is 200 N, climbs on a tree which height is 2-meter. What was the work done by the girl after climbing the tree? (g = 10 m /secA girl whose weight is 200 N, climbs on a tree which height is 2-meter. What was the work done by the girl after climbing the tree? (g = 10 m /sec²))
  • A. 800J
  • B. 400J
  • C. 200J
  • D. 2000J
Correct Answer: Option B - Given, Weight = mg = 200N h = 2m Work done by the girl = Potential energy = mgh = 200x2 = 400J
B. Given, Weight = mg = 200N h = 2m Work done by the girl = Potential energy = mgh = 200x2 = 400J

Explanations:

Given, Weight = mg = 200N h = 2m Work done by the girl = Potential energy = mgh = 200x2 = 400J