Physics, 11.12.2019 11:31 Eruein

4. a 3-kg skateboard is rolling down the sidewalk at 4 m/s when it collides with a 1-kg
skateboard that was initially at rest. if the 1-kg skateboard moves off at 6 m/s after the collision,
what is the new velocity for the 3-kg skateboard?

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4. a 3-kg skateboard is rolling down the sidewalk at 4 m/s when it collides with a 1-kg
skateb...