A 69kg skateboarder, at rest on a frictionless surface, throws a 4.0kg rock with the velocity given by v=3(i hat)+4(jhat), where the x and y axes are both in the horizontal plane. What is the x component of the subsequent velocity of the skateboarder? WHat is the y component of th subsequent velocity of the skateboarder?
I have no idea what i am doing please help? Any helpwould be greatly appeciated.
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