What is the kinetic energy of an object with a mass of #1 kg# that has been in freefall for #2 s#?
We can either:
1) use kinematic to find the final velocity after
From this we get:
2) use kinematic (and Conservation of Energy) to find the vertical distance described after
Where we set
so that the height (from ground) will be:
At this position the object had a Potential Energy of: