ItzPugll ItzPugll

19-03-2021
Physics

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Brainliest if right

Two kids are roller skating. Amy, with a mass of 55 kg, is traveling forward at 3 m/s. Jenny, who has a mass of 40 kg, is traveling in the opposite direction at 5 m/s. They crash into each other and hold onto each other so that they move as one mass. How fast are they traveling?

Respuesta :

bjkelly2912 bjkelly2912

19-03-2021

Answer:

-0.37m/s

Explanation:

work out the momentum of both kids

amy : 55 x 3 = 165kg m/s

jenny: 40x - 5 = -200kg m/s

add the momentum then divide it by the total weight so its

-35/95 = -0.37 m/s

hope this helps!!

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