Problem 3- two bugs center (a) At maximum speed, what is the angular velocity of

Question

Problem 3- two bugs center (a) At maximum speed, what is the angular velocity of each bug? (b) At maximum speed, what is the magnitude of linear velocity of each bug? tarting from rest, a record player takes 1.23 s to reach a top speed of 33.33 rpm. There are on the record: a ladybug that is 1.71 cm from the center and a beetle that is 6.32 cm from the (c) During the speed-up, what is the angular acceleration of each bug? (d) What is the magnitude of the net acceleration of the ladybug, exactly when it reaches the top

Explanation / Answer

a)

Maximum angular speed of both the bugs will be same

w = 33.33 x2xpi/60 rad / sec

w = 3.49 rad/sec

b)

lady bug v = 0.017xw = 0.059 m/s

beetle v = 0.0632x w = 0.22 m/s

c)

angular acceleration

alpha = w/t

alpha = 2.837 rad/s^2

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