A block of mass 10 kg slides down a rough slope which is inclined at 
to the horizontal. The coefficient of sliding friction is 0.30. When the block has slide 5 m, the work done on the block by the force of friction is nearly
a)
115 J
b)
c)
321.4 J
d)
A block of mass 10 kg slides down a rough slope which is inclined at to the horizontal. The coefficient of sliding friction is 0.30. When the block has slide 5 m, the work done on the block by the force of friction is nearly
a)
115 J
b)
c)
321.4 J
d)
Question ID - 51496 | SaraNextGen Top Answer
A block of mass 10 kg slides down a rough slope which is inclined at to the horizontal. The coefficient of sliding friction is 0.30. When the block has slide 5 m, the work done on the block by the force of friction is nearly
a)
115 J
b)
c)
321.4 J
d)
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A block of mass 10 kg slides down a rough slope which is inclined at |
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a) |
115 J |
b) |
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c) |
321.4 J |
d) |
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1 Answer
127 votes
Answer Key / Explanation : (b) -
|
(b)
or or
This is negative work because |
and 
are oppositely directed127 votes
Answer Link
127