Question

A 10.0-kg animal is running at a rate of 3.0 m/s. What is the kinetic energy of the animal?

Hint: 1/2 (M)(V)2
• 3.3 J
• 45.0 J

Answer 1

Kinetic energy is calculated by using formula:

Ek = 1/2*m*v^2

Now we replace values of mass and speed in this formula.

Ek = 1/2*10*3^2 = 45.0J

When you have a formula and all variable values are given in the text of question just replace variable values in equation and find the final value.