1 A rope wraps around a wooden spool and unwraps at the ve l

1. A rope wraps around a wooden spool and unwraps at the ve- locity vA-5m/s while the platform moves in the opposite di rection at 3m/s. Find the angular velocity ? of the spool giv- en r-0.4m. VA VP

Solution

Relative velocity, v= 5-3 =2m/s

Radius, r=0.4m

Therefore, angular velocity ,w= v/r

w= 2/0.4

w= 5 ( unit= inverse of sec)

  

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