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vanessa7676
04.07.2020 •
Physics
A hoop and a disk have the same mass and radius. The disk has half the moment of inertia of the hoop. If they start from rest at the top of a ramp, and if the reference for potential energy is at the bottom, which has the greater total energy?
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Ответ:
Explanation:
Given
X component of the vector is![A_x=3.9](/tpl/images/1239/0687/1ce1d.png)
Y component of the vector is![A_y=-4](/tpl/images/1239/0687/4786a.png)
From the figure, we can write
Thus, the angle measured counterclockwise from the x-axis to vector A is