Find the kinetic energy of a particle of mass moving at .

Answer and explanation

Correct answer: B.

  1. Step 1: .
  2. Step 2: J.
Answer
.
Why not the others: is what you get if you forget the factor . is what you get if you forget to square the speed. is what you get if you halve twice.

Practise more Applied Maths: Kinematics, Dynamics, Energy and Momentum.

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