Physics-
General
Easy
Question
In the figure shown upper block is given a velocity of 6 
and lower block 3 . When relative motion between them is stopped.
- Work done by friction on upper block is negative
- Work done by friction on both the blocks is positive
- Work done by friction on lower block is negative
- Work done by friction on both the blocks is negative
The correct answer is: Work done by friction on upper block is negative
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