The rotational velocity of a merry go round increaces at a constant rate from 0.

Question

The rotational velocity of a merry go round increaces at a constant rate from 0.4 rad/s to 1.8 rad/s in a time of 7s. what is the rotational acceleration of the merry go round? Through what angle (angular displacement) it rotates during this time? The rotational velocity of a merry go round increaces at a constant rate from 0.4 rad/s to 1.8 rad/s in a time of 7s. what is the rotational acceleration of the merry go round? Through what angle (angular displacement) it rotates during this time? The rotational velocity of a merry go round increaces at a constant rate from 0.4 rad/s to 1.8 rad/s in a time of 7s. what is the rotational acceleration of the merry go round? Through what angle (angular displacement) it rotates during this time?

Explanation / Answer

cceleration = change in velocity / time (for rotational or translational movements)
So a = (1.8 - 0.4) rad/s / 7s
a = 0.2 rad/s^2

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