0

Guest

Courses New

Can an external force that does no work (because the point of application is stationary) cause change in the rotational kinetic energy of a system?

Can an external force that does no work (because the point of application is stationary) cause change in the rotational kinetic energy of a system?

Grade:10

1 Answers

Jitender Pal
askIITians Faculty 365 Points
8 years ago
Yes, an external force that does no work can cause change in the rotational kinetic energy of a system. Torque is an entity which measures the rotational effect of a force. Torque of a force, acting at given point, is the defined as the momentum of the force about the axis of rotation. In accordance to Newton’s first law of rotational motion, everybody continues in its state of rest or of uniform rotational motion about a given axis unless it is completed by some external unbalanced torque to change that state. Therefore the force which has no translational motion but will produce an external torque on the system will cause change in the rotational kinetic energy of the system.

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More