Mechanics velocity of disc question

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themster
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Homework Statement


The disc rolls without sliding on the curved surface. What is the velocity of point A attached to the disc?
Ans: 1.69 m/s, directed at 45o upwards.


Homework Equations


v=ωR


The Attempt at a Solution


v=ωR = 10rad/s * 40mm
 

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hi themster! :wink:

use vector addition for the relative velocities (disc-arm and arm-earth) …

show us what you get :smile:​