Impuise rormula Force
(in N)
Impulse
(in kgm/sec) J = Ft
Time
(in sec)
J = Ap
A 3 kg object going 6 m/s to the right ends up going 3 m/s to the left. What 6 points
is the momentum before?*

45 is the correct answer

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other