A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is___________________?

Related Mcqs:

A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is___________________?

A. n rpm B. n/2 rpm C. n/4 rpm D. 2n rpm...

The bending moment in an arch is proportional to___________________?

A. vertical ordinate of funicular polygon B. vertical ordinate of the arch C. intercept between the arch axis and the funicular polygon D. none of these...

Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are____________________?

A. 2 m/sec and 2 m/sec B. 3 m/sec and 2 m/sec C. 3 m/sec and 3 m/sec D. 4 m/sec and 6 m/sec...

In a simple harmonic motion, the position of equilibrium is always_________________?

A. stable B. unstable C. neutral D. none of the above...

A rigid body is in a stable equilibrium if the application of any force__________________?

A. can raise the CG of the body but can not lower it B. tends to lower the CG of the body C. neither raises nor lowers the CG of the body D. none of above...