A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will____________________?

Related Mcqs:

A force is completely defined when we specify________________?

A. magnitude B. direction C. point of application D. all of the above E. none of the above...

In detennining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than___________________?

A. two members with unknown forces of the frame B. three members with unknown forces of the frame C. four members with unknown forces of the frame D. three members with known forces of the frame E. four members with two known forces...

Which one of the following statements is not correct_________________?

A. the tangent of the angle of friction is equal to coefficient of friction B. the angle of repose is equal to angle of friction C. the tangent of the angle of repose is equal to coefficient of friction D. the sine of the angle of repose is equal to coefficient to friction E. none … Which one of the following statements is not correct_________________?Read More...

Which of the following is the example of lever of first order________________?

A. arm of man B. pair of scissors C. pair of clinical tongs D. all of the above E. none of the above...

Two coplanar couples having equal and op-posite moments_________________?

A. balance each other B. produce a couple and an unbalanced force C. are equivalent D. produce a moment of couple E. can not balance each other...