A) zero
B) 100 J
C) 200 J
D) 300 J
Correct Answer: B
Solution :
Given: Work done in sliding a block up an inclined plane W = 320 Joule Mass of block M = 2 kg Height of inclined plane = 10 m The potential energy stored in the block is given by \[U=mgh=2\times 10\times 10=200\,J\] Hence, work done against friction is given by \[=W-U=300-200=100\,J\]You need to login to perform this action.
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