Home | | Physics 11th std | Solved Example Problems for Centripetal force

Chapter: 11th Physics : UNIT 3 : Laws of Motion

Solved Example Problems for Centripetal force

Physics : Laws of Motion : Centripetal force

Solved Example Problems for Centripetal force

Example 3.22

If a stone of mass 0.25 kg tied to a string executes uniform circular motion with a speed of 2 m s-1 of radius 3 m, what is the magnitude of tensional force acting on the stone?

Solution



Example 3.23

The Moon orbits the Earth once in 27.3 days in an almost circular orbit. Calculate the centripetal acceleration experienced by the Earth? (Radius of the Earth is 6.4 Ã— 106 m)

Solution

The centripetal acceleration is given by a = v2/r.  This expression explicitly depends on Moon’s speed which is non trivial. We can work with the formula


am is centripetal acceleration of the Moon due to Earth’s gravity.

ω is angular velocity.

Rm is the distance between Earth and the Moon, which is 60 times the radius of the Earth.


The centripetal acceleration of Moon towards the Earth is 0.00272 m s-2



Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail
11th Physics : UNIT 3 : Laws of Motion : Solved Example Problems for Centripetal force |

Related Topics

11th Physics : UNIT 3 : Laws of Motion


Privacy Policy, Terms and Conditions, DMCA Policy and Compliant

Copyright © 2018-2024 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.