Explain why one complete revolution is equivalent to an angular displacement of 2π rad.
A particle is following a circular path is observed to have an angular displacement of 0.22 rad.
Calculate the percentage error that is made when the angle 0.22 rad, as measured in degrees (θ°), is assumed to be equal to tan(θ°) to four significant figures. Give your final answer to two significant figures.
The particle travels the angle in part (b) in 60 ms.
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