Question No 1 for Physics

A particle with rest mass m moves with
speed 0.6c. Its kinetic energy is ……


A point space 0.18 mc to the power of 2 space end exponent
B point space 0.22 mc squared space
C point space 0.25 mc to the power of 2 space end exponent
D point space mc squared

Answer for question no 1

A point space 0.18 mc to the power of 2 space end exponent

Solution for question no 1

KE space equals space 1 half mv squared
equals space 1 half m space x space left parenthesis 0.6 c right parenthesis squared equals space fraction numerator 1 over denominator 2 end fraction m space x space 0.36 c squared
equals space 0.18 c squared

Answer space is space option space A