On a greasy essentially frictionless lunch counter a 0290


On a greasy, essentially, frictionless lunch counter, a 0.290 kg submarine sandwich, moving 3.80 m/s to the left, collides with an 0.290 kg grilled cheese sandwich moving 1.50 m/s to the right.

a) How much mechanical energy is dissipated in the collision?

b) If the two sandwiches stick together, what is the final velocity, taking positive velocities to the right?

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Physics: On a greasy essentially frictionless lunch counter a 0290
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