Question

A particle with rest mass m moves with speed 0.6c. Its kinetic energy is ……
A. 0.18mc2
B. 0.22mc2
C. 0.25mc2
D. mc2

Answer 1

Answer:

Its Kinetic Energy is 0.18mc^2

Explanation:

Given:

mass = m

velocity = 0.6c

We know that the formula for kinetic energy is 0.5*mass*(velocity ^2)

So,

Kinetic Energy = 0.5*m*0.6c*0.6c*

= 0.18mc^2