Help? The mass of the boy is 35 kg. What is the force of friction that slowed him down?

he kicked it 10 feet straight up into the air? i think this works.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !

i don't understand. explain it clearly

because if the tool that you are using is not balanced it there would be false mass.