Question

Find the total energy of a moving object of mass 6.3 𝑘𝑔 and momentum 11.5 × 106 𝑘𝑔𝑚𝑠 −1 . 

Answer 1

$$E=\frac{p^2}{2m}\\E=\frac{(11.5\cdot10^6)^2}{2(6.3)}=1.05\cdot10^{13}\ J$$