Problema Solution
Tom's hands go in a 12 inch radius circular pattern as he rows his boat across a lake. If his hands make a complete rotation every 2.5 seconds, what are the andular and linear speed of his hands?
Answer provided by our tutors
r = 12 in
t = 2.5 s
pi = 3.1416
linear speed = distance/time
v = d/t
v = (2*r*pi)/t
v = (2*12*pi)/2.5
v = 30.15396 in/s
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angular speed
w = (2*pi)/t
w = (2*pi)/2.5
w = 2.51328 rad/s
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