Question

What is the relation between kinetic energy and momentum?

(a) p=m/v

(b) p=mva

(c) p=mv

(d) p=m

I have been asked this question during an interview for a job.

Enquiry is from Kinetic Energy Correction and Momentum Correction Factors topic in section Viscous Flow & Turbulent Flow of Fluid Mechanics

Answer 1

The correct option is (c) p=mv

Best explanation: Kinetic energy depends upon velocity and mass. The relation is K.E= 0.5mv^2. The momentum(p) of the body=mv. Now, equating the two we get, K.E=0.5mv^2=p^2/2m. Therefore, the relation between kinetic energy and momentum is (p=mv).