(this is if you are asking about kinetic energy which I believe you are asking about)
In order to solve this, you need to first use the formula for kinetic energy which is K=1/2mv² (K being Kinetic energy, M being mass, and V being velocity)
Now plug the numbers into the equation, so you get K=1/2(34)(8.5 ²)
After multiplying everything, you would get 1228.25 joules
