1. A block of mass m1=1.60 kg initially moving to the right with speed 4.00 m/s on a frictionless horizontal track collides with a spring that is attached to a second mass, m2=2.10 kg that initially is moving to the left with speed 2.50 m/s as shown above. During the collision the spring first compresses and then expands so that both m1 and m2 move off in opposite directions. Because the internal force caused by the spring is conservative, we know that both momentum AND kinetic energy are conserved. Find the final velocity of both masses.

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Chapter1: Units, Trigonometry. And Vectors
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1. A block of mass m1=1.60 kg initially moving to the right with speed 4.00 m/s on a frictionless
horizontal track collides with a spring that is attached to a second mass, m2=2.10 kg that initially is
moving to the left with speed 2.50 m/s as shown above. During the collision the spring first compresses
and then expands so that both m1 and m2 move off in opposite directions. Because the internal force
caused by the spring is conservative, we know that both momentum AND kinetic energy are conserved.
Find the final velocity of both masses.
Transcribed Image Text:1. A block of mass m1=1.60 kg initially moving to the right with speed 4.00 m/s on a frictionless horizontal track collides with a spring that is attached to a second mass, m2=2.10 kg that initially is moving to the left with speed 2.50 m/s as shown above. During the collision the spring first compresses and then expands so that both m1 and m2 move off in opposite directions. Because the internal force caused by the spring is conservative, we know that both momentum AND kinetic energy are conserved. Find the final velocity of both masses.
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