A body is projected up a rough inclined plane of height h and inclination θ. If the velocity of projection is u, which makes the body just reach the top, then the coefficient of friction is:
1
\(\left( {\frac{{{u^2}}}{{2gh}} - 1} \right)\tan \theta \)
2
\(\left( {\frac{{{u^2}}}{{2gh}} - 1} \right)\sin \theta \)
3
\(\left( {\frac{{{u^2}}}{{2gh}} - 1} \right)\cot \theta \)
4
\(\left( {\frac{{{u^2}}}{{2gh}} - 1} \right)\cos \theta \)