A cell phone weighing 80 grams is flying through the air at 15 m/s. What's is it's kinetic energy

The kinetic energy of the cell phone is 9J

Explanation:

The kinetic energy is the energy possessed by a body by virtue of motion.

The kinetic energy is expressed as

KE = 1/2m (v) ²

Given data

Mass of cell phone m = 80g--to kg=80/1000 = 0.08kg

Velocity of cell phone v = 15m/s

Substituting our given data we have

KE = 1/2*0.08 (15) ²

KE = (0.08*225) / 2

KE=18/2

KE = 9J