8. On a frictionless air track, a 0.15 kg glider moving at 1.2 m/s to the right collides with and sticks to a stationary 0.25 kg glider(a) What is the net momentum of this two-glider system before the collision?(b) What must be the net momentum of this system after the collision?(c) Use your answers in parts (a) and (b) to find the speed of the gliders after the collision.(d) Is kinetic energy conserved during the collision?

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Asked Nov 11, 2019
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8. On a frictionless air track, a 0.15 kg glider moving at 1.2 m/s to the right collides with and sticks to a stationary 0.25 kg glider
(a) What is the net momentum of this two-glider system before the collision?
(b) What must be the net momentum of this system after the collision?
(c) Use your answers in parts (a) and (b) to find the speed of the gliders after the collision.
(d) Is kinetic energy conserved during the collision?
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8. On a frictionless air track, a 0.15 kg glider moving at 1.2 m/s to the right collides with and sticks to a stationary 0.25 kg glider (a) What is the net momentum of this two-glider system before the collision? (b) What must be the net momentum of this system after the collision? (c) Use your answers in parts (a) and (b) to find the speed of the gliders after the collision. (d) Is kinetic energy conserved during the collision?

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Expert Answer

Step 1

a)

The momentum before c...

Pmym
-(0.15)(1.2)+[(0.25)(0)]
0.18kg-m/s
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Pmym -(0.15)(1.2)+[(0.25)(0)] 0.18kg-m/s

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