Acoin with a diameter of 2.11 cm is dropped onto a horizontal surface. the coin starts out with an initial angular speed of 19.0 rad/s and rolls in a straight line without slipping. if the rotation slows with an angular deceleration of 1.26 rad/s2 , how far does the coin roll before coming to rest?

9.49596 m

Explanation:

= Final angular velocity = 0

= Initial angular velocity = 19 rad/s

= Angular acceleration = -1.26 rad/s²

= Angle of rotation

Equation of rotational motion

Converting to m

The distance the coin rolls before it stops is 9.49596 m

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the answer is the index of refraction of the second medium is higher. i just took the test.