A block of mass 500g slides down a a rough incline plane of inclination 53o with a uniform speed. Find the work done against the friction as the block slides through 2m[g=10m/s−2]
Open in App
Solution
Since it is moving with constant speed work done =△Kt=0 Wgravity−=−Wfriction Wfriction=−Wgravity =Mg(H2−H1) sin53=H2−H12 H2−H1=85 45=H2−H12 =5001000×10×85 =8 joules