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23.06.2019 •
Physics
In general, the friction involved in sliding an object is the friction involved in rolling an object. less than greater than equal to
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Ответ:
the friction if sliding is greater than rolling
Ответ:
greater than
Explanation:
The force of friction acts when there is relative motion between two surfaces. It is a resistive force which opposes the motion. coefficient of friction depends on the roughness of the contact surface and contact area. More roughness and greater contact area means greater force of friction.
When the object is at the verge of motion with respect to a surface, static friction acts. When it is in motion, kinetic friction acts. Kinetic friction is less than static friction.
During sliding of object the contact area is greater than the case of rolling. Sliding friction occurs when object slides over a surface. The object is in contact with the surface. In case of rolling, there is only single point of contact with the surface. Thus, sliding friction is greater than rolling friction.
Ответ:
This answered one of my questions, thanks
Explanation: