In your design, how would you change the masses of both Car A and Car B to minimize the changes in motion for both cars involved in the collision? Explain your idea using Newton's third law and support it with evidence from the system model in this activity.

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?