Question: Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.4 kgm2 and an angular velocity of +7.2 rad/s.

Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.4 kg·m2 and an angular velocity of +7.2 rad/s. Disk B is rotating with an angular velocity of -9.8 rad/s. The two disks are then linked together without the aid of any external torques, so that they rotate as a single unit with an angular velocity of -2.4 rad/s. The axis of rotation for this unit is the same as that for the separate disks. What is the moment of inertia of disk B?

Step by Step Solution

★★★★★

3.48 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Let the two disks constitute the system Since there is no external torques acting on th... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

232-P-M-D (193).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

An ice skater has a moment of inertia of 100 kg m2 when his arms are outstretched and a moment of inertia of 75 kg m2 when his arms are tucked in close to his chest. If he starts to spin at an...

A centrifuge rotor has a moment of inertia of 3.75 x 10-2 kg m2. How much energy is required to bring it from rest to 8250 rpm?

A centrifuge rotor has a moment of inertia of 3.25 10-2 kgm2. How much energy is required to bring it from rest to 8750 rpm?

BigScreen Corporation manufactures and sells televisions. Actual data relating to January, February, and March of 2 0 2 0 are: It is now April 2 0 2 0 and BigScreen takes a look back on the actual...

two disks are rotating about the same axis. disk a has a moment of inertia of 6 . 4 8 kg m ^ 2 and an angular velocity of 4 . 6 rad / s . disk b is rotating with an angular velocity of - 6 . 7 1 rad...

Two disks are rotating about the same axis. Disk A has a moment of inertia of 4 . 8 3 k g * m 2 and an angular velocity of + 7 . 1 4 r a d s . Disk B is rotating with an angular velocity of - 6 . 7 0...

Two disks are rotating about the same axis. Disk A has a moment of inertia of 7 . 3 3 k g * m 2 and an angular velocity of + 2 . 2 0 r a d s . Disk B is rotating with an angular velocity of - 8 . 5 3...

(1) Please show the relations (use as many paper sheets as you need). 1. [4] 2. [4](2) Compute the quantities below. (Express answers to 3 sig. figs.) [16] 1. Hanging mass's acceleration a = m/s2 2....

Suppose that an extremely viscous liquid fills a space of thickness H between two disks of radius R, as shown in Fig. P8.9. The upper disk rotates at a constant angular velocity and the lower one is...

Mini lab report that includes: 1)Title of the Experiment, 2)Introduction/Purpose. It should be about half of page long and describe what was the purpose of the experiment,which specific physics laws...

Python Basic Calculate word length Create a function that returns a dictionary with word lengthsand keys. Use a loop to evaluate each word separately usingthe len function. Forexample,...

Consider the quadrature formula Lir)dx =f(-) +f() 4. 5. 2, If the degree of precession is 1, Find the truncation error.

2 Cinema tickets cost $8 each and there is a single booking fee of $4. Work out the total cost of booking 5 tickets. a b The total cost of booking t tickets is Sy. Write a function for y in terms of...

List some ways that you, as an administrator, could motivate those whom you supervise. How do the motivation models in this chapter influence your list?

A Multi-stage Rocket In the first stage of a two-stage rocket, the rocket is fired from the launch pad starting from rest but with a constant acceleration of 3.50 m/s2 upward. At 25.0 s after launch,...

Look Out Below. Sam heaves a 16-lb shot straight upward, giving it a constant upward acceleration from rest of 45.0 m/s' for 64.0 cm. He releases it 2.20 m above the ground. You may ignore air...

A physics teacher performing an outdoor demonstration suddenly falls from rest off a high cliff and simultaneously shouts "Help." When she has fallen for 3.0 s, she hears the echo of her shout from...

E9-9 (Algo) Colculating Direct Labor Variances [LO 9-4] Parke Plastic, Incoxporated, mahufactures plastic mats to use whth rolling office chairs its standard cost information for last year follows....

Michael has a 25 year mortgage for $350000 with monthly payments of $3118.98. a) What is the nominal annual rate compounded monthly? After 3 years the interest rate has gone down to 6.75% (compounded...

Tyler Trucks stock has an annual return mean and standard deviation of 13 percent and 42 percent, respectively. Michael Moped Manufacturing stock has an annual return mean and standard deviation of...