Try this out. use a calculator! we can use the formula ke=0.5m*v^2. to find the kinetic energy (ke) of a payload of mass (m) 100 kg as it flies through the air at the velocity (v) of 55 m/s. (multiply 0.5 x the mass x velocity squared.) your answer will be in joules (a measure of energy). question 3 options: . question 3 options: 5500 j 151250 j 302500 j 2750 j