Question

A block of mass 10 kg slides down a rough
slope which is inclined at 45' to the horizontal.
The coefficient of sliding friction is 0.30. When
the block has to slide 5 m, the work done on
the block by the force of friction is nearly
1)115) 2)-75 V2J 3) 321.4J 4) -321.4 J

Answer 1

Answer:

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