Name the force which is compulsory to sustain uniform circular motion.

Centripetal Force is a must to sustain uniform circular motion as it ensures that the object stays along the circular path and it acts along the radius inwards.

What is centripetal force?

Centripetal force is the component of force acting on an object in curvilinear motion which is directed toward the axis of rotation or centre of curvature. According to the centripetal force definition, we say that it is the force that pulls or pushes an object toward the centre of a circle as it travels, causing angular or circular motion.

How does this force work?

The centripetal force is always directed perpendicular to the direction of the displacement of the object. If an object accelerates according to the changes of velocity, then it can change either its speed or direction of motion. In simple terms, if any moving object in a circular path is constantly changing its direction means it is constantly accelerating. Using Newton’s second law of motion, if an object is travelling in a circular path, it is found that the centripetal force of an object moving in a circular path always acts towards the centre of the circle.

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