Centripetal and Centrifugal Force

IMPORTANT

Centripetal and Centrifugal Force: Overview

In this topic, we will learn the definitions of centripetal force and nature of centripetal force. We will also understand the concept of centrifugal force and its impact on the moving object with some examples for practicing.

Important Questions on Centripetal and Centrifugal Force

EASY
IMPORTANT

A vehicle of mass 200 kg is moving along a levelled curved road of radius 70 m with angular velocity of 0.2 rad s-1. The centripetal force acting on the vehicle is:

MEDIUM
IMPORTANT

A small block of mass 100 g is tied to a spring of spring constant 7.5 N m-1 and length 20 cm. The other end of spring is fixed at a particular point A. If the block moves in a circular path on a smooth horizontal surface with constant angular velocity 5 rad s-1about point A, then tension in the spring is

EASY
IMPORTANT

A toy car of mass 80 g is maintained to move in a horizontal circle of radius 0.8 m with a velocity v m s-1. If the centripetal force acting on it is 10 N, then the value of v in m s-1 is

EASY
IMPORTANT

A body is revolving with a constant speed along a circle. If its direction of motion is reversed but the speed remains the same, then,

EASY
IMPORTANT

Centripetal force is a force which tends to throw the body away from the centre.

MEDIUM
IMPORTANT

When a car of mass M passes through a convex bridge of radius r with velocity v, then it exerts a force on it. What is the magnitude of the force?

EASY
IMPORTANT

Which force is an example of a real force?

(Centripetal/ Centrifugal/ Coriolis)

EASY
IMPORTANT

A boy experiences a centrifugal force on his hand when he rotates a piece of stone tied at one end of a string, holding the other end in the hand.

MEDIUM
IMPORTANT

A ball of mass 0.5 kg is attached to a string of length 50 cm. The ball is rotated on a horizontal circular path about its vertical axis. The maximum tension that the string can bear is 400 N. The maximum possible value of angular velocity of the ball in rad s-1 is,:

MEDIUM
IMPORTANT

A coin is placed on a disc. The coefficient of friction between the coin and the disc is μ. If the distance of the coin from the center of the disc is r, the maximum angular velocity which can be given to the disc, so that the coin does not slip away, is :

HARD
IMPORTANT

A tube of length L is filled completely with an incompressible liquid of mass M and closed at both ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity ω. The force exerted by the liquid at the other end is