3.1.A.1Concept
An object's translational kinetic energy is given by the equation K = ½mv2.
ExampleCalculate K directly1 / 3
A 4 kg cart rolls across a frictionless track at 5 m/s. Find its translational kinetic energy.
Try it on paper first, then reveal each step to check your work.
Step 1 — Identify the equation and values
K = ½mv2, with m = 4 kg and v = 5 m/s.