300 j of work is done in sliding


Asked by admin @ in Physics viewed by 363 People


300J of work is done in sliding a 2kg block up and inclined plane of hight 10m. Work done against friction is ??

Answered by admin @




(a)
Work done against gravity = mg sin q × d
= 2 × 10 × 10 (d sinq = 10)
= 200 J
Actual work done = 300 J
Work done against friction = 300 - 200 = 100 J

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