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A 5 kg cart moving at a velocity 2 m/s in the +x-direction collides completely inelastically...

A 5 kg cart moving at a velocity 2 m/s in the +x-direction collides completely inelastically (i.e. they stick) with a second cart of mass 1.5 kg which is initially moving at a velocity of 10 m/s in the +y-direction.

What is the total initial kinetic energy?  J.
What is the total x-component of momentum just before the collision?  Kg m/s.
What is the total y-component of momentum just before the collision?  Kg m/s.
What is the total x-component of momentum just after the collision?  Kg m/s.
What is the total y-component of momentum just after the collision?  Kg m/s.
What is the magnitude of the final momentum just after the collision?
kg m/s.
What is the direction (angle from the +x axis) of the final momentum?
degrees.
What is the final kinetic energy?
J.
What is the final speed of the entangled objects?
m/s.

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