trb2007gws trb2007gws

03-01-2024
Physics

contestada

After stumbling out of the wreckage, the 90kg Ms. Burns makes it onto the ice.
She is skating toward a 110kg defender at 3.89m/s that is skating away from her
at 2.75m/s. They collide elastically, sending Ms. Burns skating backwards at
1.85m/s. How fast is the defender moving after the check?

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