SSC MTS EXAM

Detailed explanation-1: -Static friction is the force holding an object in place on an incline, such as the cheese in Figure 1. The friction force points against the direction that the object would slide without friction. Static friction keeps gravity from pulling the cheese down the incline.

Detailed explanation-2: -Answer: The coefficient of kinetic friction between the block and the surface of the inclined plane is equal to the tangent of the angle formed between the ground and the surface of the ramp when the block is moving at a constant velocity.

Detailed explanation-3: -If a particle of mass m is placed on a smooth inclined plane (i.e. the frictional force F=0 ) and released it will slide down the slope. To find the acceleration of the particle as it slides we resolve in the direction of motion. F=ma, mg cos(90∘−)=ma, g cos(90∘−)=a, g sin()=a.