Question

In: Physics

A 2 kg mass moving to the right at 10 m/s collides elastically with a 2.4...

A 2 kg mass moving to the right at 10 m/s collides elastically with a 2.4 kg mass moving to the left at 8.33 m/s. After the collision the 2 kg mass moved at a speed vgf in a direction of 30 degrees and the 2.4 kg object at a speed vbf in a direction 30 degrees south of west.
(5 pts) a. What is the difference between an elastic and an inelastic collision?

(15 pts) b. Find the velocity of the 2 kg object after the collision. (15 pts) c. Find the velocity of the 2.4 kg object after the collision. Use conservation of momentum in two dimensions.

Solutions

Expert Solution

A.

In elastic collision total linear momentum, kinetic energy and total energy are conserved i. e. remain same before and after the collision.

In an inelastic collision, linear moment and total kinetic energy are conserved but the kinetic energy isn't conserved.

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