Question

To keep an object in a fixed circular orbit, which of the following plays an important role?

• A. Changing tangential velocity.
• B. Centripetal acceleration
• C. Mass of the object
• D. Linear momentum of the object

Answer 1

The correct option is B

Centripetal acceleration

The centripetal or it is also known as center seeking acceleration comes into the picture when an object performs a uniform circular motion. For this, a tangential velocity gives different direction although its magnitude remains constant. In other words, the magnitude of the centripetal acceleration is related to the tangential speed and angular velocity.