Question: A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to?(t)=?t+?t3, where?=0.411rad/sand?=1.4510 ?2 rad/s3 calculate the average

A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to ?(t)=?t+?t3, where ?= 0.411 rad/s and ?= 1.45×10^?2 rad/s3

calculate the average angular velocity ?av?z for the time interval t=0 to t= 5.25 s

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