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An eraser is tied to a string and whirled in a horizontal circle at a constant speed. Inertia is the natural tendency of the eraser to resist changes in its state of motion. This means that the eraser a. is not accelerating since it is maintaining the same circular path at a constant speed b. would naturally move tangent to the circle if the string is released c. will continue along its circular path if the forces on it suddenly become balanced d. would require an unbalanced force in order to leave the circle and continue tangent to it e. is experiencing a balance of forces the inward and the outward force balance each other​



Answer :

MathPhys

Answer:

b. would naturally move tangent to the circle if the string is released

Explanation:

If the string is released, the inertia of the eraser will carry it in the direction of its tangential velocity.

Option A is false, because while the speed is constant, the velocity (speed and direction) is constantly changing. For a circular path, this change in velocity is called the centripetal acceleration.

Option C is false, because the eraser needs an unbalanced force to maintain its centripetal acceleration.

Option D is false, because the eraser will have a constant direction and speed when it leaves the circle, and thus a constant velocity (zero acceleration).

Option E is false, because the eraser is only experiencing an inward force due to the tension in the string.

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