Asteroid A1, mA1 = 3.60 × 106 kg, and asteroid A2, mA2 = 1.20 × 106 kg, collide head-on in space. Approximate (rather poorly) the collision as being elastic. Observers watch the event from two space platforms. An observer on platform Q measures the speed of A1 to be 519 m/s and the speed of A2 to be 335 m/s , and sees A2 heading directly toward A1. The second platform, platform Z, is at rest in the zero-momentum reference frame of the asteroids. Let asteroid A1 be initially moving the +x direction.
Part A: What is the x-component of the combined momentum of the asteroids measured from platform Q?
px =
Part B: What is the x-component of the velocity of platform Z relative to platform Q?
vQ,x=