Which object has kinetic energy?(1 point)

Question

Responses

battery in a remote-control car
battery in a remote-control car

soccer ball flying through goalposts
soccer ball flying through goalposts

apple in a tree
apple in a tree

electric heater

Answer 1

electric heater

Answer 2

Which scenario shows an object gaining potential energy and losing kinetic energy?(1 point)
Responses

roller-coaster car accelerating as it moves down a hill
roller-coaster car accelerating as it moves down a hill

roller-coaster car slowing as it moves up a hill
roller-coaster car slowing as it moves up a hill

roller-coaster car stopped while it picks up passengers
roller-coaster car stopped while it picks up passengers

roller-coaster car slowing to a stop to pick up passengers

Answer 3

Yikes ! soccer ball has (1/2) m v^2 kinetic energy !!!!
This answer bot is nuts.

roller-coaster car slowing as it moves up a hill
gaining m g h , losing (1/2) m v^2