badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: upto college level

                        

A particle has a constant kinetic energy K. Which of the following quantities must also be constant? (A) Position (B) Speed (C) Velocity (D) Momentum

5 years ago

Answers : (1)

Deepak Patra
askIITians Faculty
471 Points
							The correct options are (B) speed and (D) momentum.
Kinetic Energy (Ek) of a particle is defined as,
Ek = ½ mv2 …… (1)
Where m is the mass of the particle and v is the speed of the particle.
Since a particle has a constant kinetic energy Ek and mass of the particle m is also a constant quantity, therefore equation (1) signifies that speed of the particle must be a constant quantity.
Again since we know that, momentum of a particle (p) depends on the kinetic energy of that particle (Ek) by the relation,
P = √2mEk …… (2)
Since a particle has a constant kinetic energy Ek and mass of the particle m is also a constant quantity, therefore equation (1) signifies that momentum of the particle must be a constant quantity.
From the above observation we conclude that, option (B) and (D) are both correct.
5 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details