If the Plate of the microwave oven distance has a radius of 0.15 m and rotates at 6.0 rev/min calculate the total distance traveled by the fly during a 2.0 min cooking period.  (11m) 



Given:

The radius of the microwave oven plate = r = 0.15 m
Angular velocity = ⍵ = 6.0 rev/min = `\frac {6.0 ｘ 2 π rad}{60 s}` = 0.2 π rad/s
Cooking time = t = 2.0 min = 120 s

To Find:

Distance traveled = S = ?

Solution:

we know that 

S = r 𝛉 --------------(1)

and

𝛉 = ⍵ t -------------(2)

putting equation (2) in equation (1)

S = r ⍵ t 

by putting values

S = 0.15 m ｘ 0.2 ｘ3.141592 rad/s ｘ120 s 

S = 11.309 m

or

S = 11 m -----------------Ans




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