Define coefficient of static friction. An object of weight W rests on an inclined plane. The coefficient of friction between the object and the plane is mu. For what value of the angle of inclination theta, will the object move downward with uniform speed under its own weight ?

Define coefficient of static friction. An object of weight W rests on

1.	Define coefficient of static friction. An object of weight W rests on an inclined plane. The coefficient of friction between the object and the plane is mu. For what value of the angle of inclination theta, will the object move downward with uniform speed under its own weight ?
Answer» Solution :The forces ACTING on the body along with their COMPONENTS are shows in FIG. When the body is about to slide down along the INCLINE then, W sin `theta=mu R = mu Wcostheta` or, `tantheta=mu """or",theta= tan^(-1)mu`