A block of ice weighing one quintal rests in equilibrium on a wooden plank inclined at 30 degree. The coefficient of friction between the ice and wood plank will be

0.0577

0.00577

0.577

5.77

bolt and tube are subjected to compressive load

bolt and tube are subjected to tensile load

bolt is subjected to compressive load while tube is subjected to tensile load

bolt is subjected to tensile load while tube is subjected to compressive load

greater than cutting stroke time

lesser than cutting stroke time

equal to cutting stroke time

None of the above

(8r/3)

(4r/3xPie)

(3r/4xPie)

(3r/8)

same at every point on its line of action

maximum, if it acts at the centre of gravity of the body

different at different points on its line of action

minimum, if is acts at the centre of gravity of the body