A thin uniform rod has a length of 0.480 m and isrotating in a circle on a frictionless table. The axisof rotation is perpendicular to the length of the rodat one end and is stationary. The rod has anangular velocity of 0.42 rad/s and a moment ofinertia about the axis of 3.30x10-3 kg m2. A buginitially standing on the rod at the axis of rotationdecides to crawl out to the other end of the rod.mrod 4.30x10-2 kgPrevious AnswersSubmitCorrectWhen the bug has reached the end of the rod andsits there, its tangential speed is 0.110 m/s. Thebug can be treated as a point mass.Part BWhat is the mass of the bug?Express your answer with the appropriate units.HA?kg- 0.0097mbugPrevious Answers Request AnswerSubmitX Incorrect; Try Again; 5 attempts remainingDrovido Foodbol

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Asked Dec 1, 2019
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A thin uniform rod has a length of 0.480 m and is
rotating in a circle on a frictionless table. The axis
of rotation is perpendicular to the length of the rod
at one end and is stationary. The rod has an
angular velocity of 0.42 rad/s and a moment of
inertia about the axis of 3.30x10-3 kg m2. A bug
initially standing on the rod at the axis of rotation
decides to crawl out to the other end of the rod.
mrod 4.30x10-2 kg
Previous Answers
Submit
Correct
When the bug has reached the end of the rod and
sits there, its tangential speed is 0.110 m/s. The
bug can be treated as a point mass.
Part B
What is the mass of the bug?
Express your answer with the appropriate units.
HA
?
kg
- 0.0097
mbug
Previous Answers Request Answer
Submit
X Incorrect; Try Again; 5 attempts remaining
Drovido Foodbol
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A thin uniform rod has a length of 0.480 m and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end and is stationary. The rod has an angular velocity of 0.42 rad/s and a moment of inertia about the axis of 3.30x10-3 kg m2. A bug initially standing on the rod at the axis of rotation decides to crawl out to the other end of the rod. mrod 4.30x10-2 kg Previous Answers Submit Correct When the bug has reached the end of the rod and sits there, its tangential speed is 0.110 m/s. The bug can be treated as a point mass. Part B What is the mass of the bug? Express your answer with the appropriate units. HA ? kg - 0.0097 mbug Previous Answers Request Answer Submit X Incorrect; Try Again; 5 attempts remaining Drovido Foodbol

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Expert Answer

Step 1

Given information:

Length of the rod (l) = 0.480 m

Initial angular velocity of the rod (ω1) = 0.42 rad/s

Initial moment of inertia of the rod (I1) = 3.30 × 10-3 kg.m2

The tangential of the ant when it reaches the other end is (v) = 0.110 m/s

Step 2

If the ant sits on the other end and has a tangential velocity (v) the...

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0.110 0.23 rad/s W2 l 0.480 According to law of conservation of angular momentum the initial and final angular momentum must be equal, we can write that as: w1 12w2.. Equation (1) = Where I2 is given by: I2 3.30x 10-3 + m (0.4802)

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