Which example shows energy? Your

A)pushing a box across the floor

B)using the lawnmower to cut the front lawn

C)painting your house a different color

D)They all show sample of energy

Kinetic energy = 1/2mv^2. since the mass is constant we can form a ratio of it's kinetic energy at 60 divided by that at 30 to see ke(60)/ke(30) = +(60^2)/30^2). this may be said to 300% increase.

It may possibly be c i think |-/