An object rolls without slipping onto a surface where the coefficient of friction between object and surface is twice as great as that needed to prevent slipping.
Describe the subsequent motion:-
A) The object begins to slip, and the actual force of static friction doesn't change.
B) The object continues to roll without slipping, and the actual force of static friction doesn't change.
C) The object continues to roll without slipping, and the actual force of static friction increases.
D) The object begins to slip, and the actual force of static friction increases.

Question

08-12-2022
Physics

Answered

An object rolls without slipping onto a surface where the coefficient of friction between object and surface is twice as great as that needed to prevent slipping.
Describe the subsequent motion:-
A) The object begins to slip, and the actual force of static friction doesn't change.
B) The object continues to roll without slipping, and the actual force of static friction doesn't change.
C) The object continues to roll without slipping, and the actual force of static friction increases.
D) The object begins to slip, and the actual force of static friction increases.

Answer :

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AnnuG AnnuG · Answer 1 · 2022-12-17T05:49:27-05:00

The correct option B) The object continues to roll without slipping, and the actual force of static friction doesn't change.

When an object experiences static friction, its frictional force resists any applied force, causing the object to stay at rest until the static frictional force is removed. The frictional force opposes an object's motion in kinetic friction.

In contrast, static friction occurs when two surfaces are at rest with regard to one another. Static friction ranges in value from zero to the minimum force required to initiate motion. The force necessary to initiate motion or to remove static friction is always greater than that needed to keep the motion going or to remove kinetic friction.

When an object and surface have twice as much friction as is required to prevent slippage, the object rolls onto the surface without slipping.

Thus, the ensuing motion is that the object keeps rolling without slipping, and the static friction's actual force remains constant.

To know more about the Static Friction:

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