1.) Remember that when dealing with collisions in 2-dimensions, momentum is cons

Question

1.) Remember that when dealing with collisions in 2-dimensions, momentum is conserved in each dimension.
Two pucks are sliding on a frictionless tabletop. Block A (mass 3.92 kg) is moving to the East (+x direction) at 1.50 m/s. Block B (mass 4.70 kg) is moving to the North (+y direction) at 1.80 m/s. Assume the system to be both Block A and Block B. (Note: It could be useful to make a drawing of the situation.)
What is the x-component of the total momentum of the system before the collision?


2.) What is the y-component of the total momentum of the system before the collision?


3.) What is the x-component of the total momentum of the system after the collision?


4.) What is the y-component of the total momentum of the system after the collision?

Explanation / Answer

a)x component of total momentum before collision=3.92*1.5=5.88kgm/s

b)y-component of the total momentum of the system before the collision=4.7*1.8=8.46kgm/s

c)Since momentum is conserved in collision,

x-component of the total momentum of the system after the collision=5.88kgm/s

d) y-component of the total momentum of the system after the collision=8.46kgm/s

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