What is the velocity of an eight KG lead shot put if it has 484J of energy

Answer 1

Hello America (Beautiful?)

This question is badly written! It's ignoring potential energy and rotational energy.

But the answer your teacher is looking for is that the equation for kinetic energy is E=1/2*m*v^2, where E is the kinetic energy, m is the ball's mass, and v is the velocity. Plugin m=8 kg, and E=484 J, and solve for v which will come out in units of m/s (should be around 7.77 m/s)

Note that 1 Joule = 1 kg*m^2/s^2, so you'll notice that the units work out