science
Grade8
Easy
Question
An object performing a uniform circular motion is under the action of _____.
- Balanced forces
- Unbalanced forces
- Both balanced and unbalanced forces
- None of the above
Hint:
The inertia of a body resists a change in its state.
The correct answer is: Unbalanced forces
Here the correct option will be 'b' i.e; unbalanced forces. As we know that according to newton's first law an object continues its state of rest or motion unless some unbalanced force is applied to it. Here, in a circular motion, the direction of the object changes continuously so unbalanced forces are required to do so.
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