A photon has an energy of 5.0×1018 eV5.0 \times 10^{18}\text{ eV}5.0×1018 eV. An object of mass 0.10 kg has kinetic energy equal to the energy of the photon.
What is the speed of the object?
2.0 m s−12.0\text{ m s}^{-1}2.0 m s−1
4.0 m s−14.0\text{ m s}^{-1}4.0 m s−1
8.0 m s−18.0\text{ m s}^{-1}8.0 m s−1
16 m s−116\text{ m s}^{-1}16 m s−1
