An engine performs 17,640 J of work on a scooter. The scooter and rider
have a combined mass of 180 kg. If the scooter started at rest, what is the
speed of the bike after the work is performed?

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                                         : )

close lines strong magnet less close weaker

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

the inner core.

good luck: )

klicker