BSc Nursing GNM 2019 Solved Paper

Net work done in sliding a body up to a height h on inclined plane = Work done against gravitational force
+ Work done against frictional force
⇒‌‌W=Wg+Wf...(i)
‌ But ‌‌‌W=300J
Wg=mgh
=2×10×10=200J
Putting these value in Eq. (i), we get
300‌‌=200+Wf
⇒Wf‌‌=300−200=100J