Physics
Grade-10
Easy
Question
What is the direction of the centripetal acceleration w.r.t. the centripetal force?
- Perpendicular to the centripetal force
- Parallel to the centripetal force
- 30 degrees to the centripetal force
- 60 degrees to the centripetal force
Hint:
Direction of centripetal force and centripetal acceleration can be derived by considering the relation between velocity and the force acting on the body.
The correct answer is: 30 degrees to the centripetal force
The direction of velocity is tangential to the circular path. We know that acceleration is always perpendicular to the velocity so centripetal acceleration is perpendicular to the circle.Now, from Newton's second law of motion we can say that direction of force is in the direction of acceleration or parallel to it.
Hence, the direction of centripetal acceleration is parallel to centripetal force.
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