Physics
Grade-10
Easy

Question

Which of the following is true about the centripetal force?
(a) It pulls an object towards the other.
(b) It keeps a body moving in a circular path.
(c) It acts perpendicular to the motion of the body.
(d) It is an attractive force.

  1. Only (a) and (b) are correct
  2. Only (b) and (c) are correct
  3. Only (c) and (d) are correct
  4. None is correct

hintHint:

An object moving in a circular path experiences centripetal force.

The correct answer is: Only (b) and (c) are correct


    The correct option is b)Only (b) and (c) are correct.
    As an object moves along a circular path, it changes direction and speed at each point. The force that causes this velocity or acceleration is called the centripetal force. Always work inwards, towards the center.
    A centripetal force acts on an object moving at a constant speed on a circle, so the speed of the object is tangential to the circle, so the force always acts inward. This means that the force is always perpendicular to the direction in which the object is displaced.

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