A small 21 kilogram canoe is floating downriver at a speed of 3 m/s. What is the canoe's kinetic energy?

The formula for finding the kinetic energy of an object is:

KE = 0.5MV^2,

Where:

M = Mass

V = Speed

From the information given above,

M = 21 kg

V = 3 m/s

KE = 0.5 * 21 * 9 = 94.5

Therefore, the canoe's kinetic energy is 94.5 J