A8kg cat is running 4 m/s. how much kinetic energy does it have?

KE = 1/2 · M · V²

Kinetic energy = (1/2) · (mass) · (speed)²

Cat's KE = (1/2) · (8 kg) · (4 m/s)²

KE = (4 kg) · (16 m²/s²)

KE = 64· (kg ·m² / s²)

KE = 64 · (kg · m / s²) · (m)

KE = 64 Newton · meter

KE = 64 Joules

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )