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Momentum collision A person (m=67kg) is moving down a path at 3.4m/s when you collide, elastically,...

Momentum collision
A person (m=67kg) is moving down a path at 3.4m/s when you collide, elastically, with another person (m=75kg) who was running directly toward you at 6.5m/s. What are each of your velocities after the collision?

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Answer #1

Given that collision is elastic

so both momentum and kinetic energy is conserved.

Consider conservation of momentum

Initial momentum =Final momentum

-----------------(1)

==========================

Consider conservation of kinetic energy.

Initial kinetic energy=Final kinetic energy

Put (1) in above equation

Solve the quadratic equation using a calculator

ANSWER:

===========

Put value of v1 in (1)

ANSWER:

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