Question

A wheel is rotating at a rate of 2.5 revolutions every 3.6 s. Through what angle, in radians, does the wheel rotate in 1.0 s?
bobpursley
displacement=2.5rev/3.6sec * 2PIrad/rev * 1sec
2 pi radians/rev ( 2.5 rev /3.6 s)

= 4.36332313 radians/second
i dont understand :(

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