A plank of mass 10 kg and a block of mass 2 kg are placed on a horizontal plane as shown…
Physics · JEE Advanced · NTA Exams — Work, Energy and Power
A plank of mass 10 kg and a block of mass 2 kg are placed on a horizontal plane as shown in the figure.
There is no friction between plane and plank. The coefficient of friction between block and plank is 0.5, A force of 60 N is applied on plank horizontally In first 2 s the work done by the friction on the block is:
There is no friction between plane and plank. The coefficient of friction between block and plank is 0.5, A force of 60 N is applied on plank horizontally In first 2 s the work done by the friction on the block is:
- – 100 J
- 100 J
- zero
- 200 J
Answer
(B) 100 J
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