A block of mass \( 250 \mathrm{~g} \) slides down an incline with P...

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A block of mass \( 250 \mathrm{~g} \) slides down an incline with
P an inclination of \( 37 \% \) with a uniform speed. Find the work done by the friction as the block slides
W through \( 1.0 \mathrm{~m} \).
(Take \( g=10 \mathrm{~ms}^{-2} \) )
(1) \( 1.5 \mathrm{~J} \)
(2) \( -1.5 \mathrm{~J} \)
(3) \( 2.5 \mathrm{~J} \)
(4) \( -2.5 \mathrm{~J} \)
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