Question

2) A solid sphere with mass 2kg and radius 0.2 meters is rotating clockwise about its...

2) A solid sphere with mass 2kg and radius 0.2 meters is rotating clockwise about its center with ωi =5 rad/s. a) Find its Moment of Inertia. b) We want to double its angular speed in 3 full turns of the sphere. Find its acceleration.c) A constant force is acting on the edge with 135 degrees angle. Find the Force needed to for this acceleration

Homework Answers

Answer #1

A. I = 0.032 Kg.m^2

B. Alpha = 1.99 rad./sec^2

C. F = 0.45 N

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A solid disk with a c of 1/2, mass of 2 kg, and radius of 1.5...
A solid disk with a c of 1/2, mass of 2 kg, and radius of 1.5 meters lies on a horizontally (so the normal force and weight can be ignored). A force of 8 Newtons is applied 0.2 meters directly to the right of center in the +x direction, a force of 20 Newtons is applied 0.7 meters directly below of center in the +x direction, and a force of 7 Newtons is applied at the edge of the disk...
A uniform solid sphere of radius r = 0.410 m and mass m = 13.0 kg turns clockwise about a vertical axis through its center (when viewed from above),...
A uniform solid sphere of radius r = 0.410 m and mass m = 13.0 kg turns clockwise about a vertical axis through its center (when viewed from above), at an angular speed of 3.20 rad/s. What is its vector angular momentum about this axis? (Enter the magnitude in kg · m2/s.) magnitude ? direction?
A spherical ball with mass 0.2 kg and radius 0.1 meters laying on a table. It...
A spherical ball with mass 0.2 kg and radius 0.1 meters laying on a table. It is hit by a perpendicular force on the top which makes it roll with an acceleration of 0.3 m/s a) Find the angular acceleration    b) Find the moment of inertia c) Find the Torque(net) d) Find Fnet e) Find the external force and the friction force using Newton’s second law for linear and rotational motion
A small, solid cylinder with mass = 20 kg and radius = 0.10 m starts from...
A small, solid cylinder with mass = 20 kg and radius = 0.10 m starts from rest and rotates without friction about a fixed axis through its center of mass. A string is wrapped around the circumference of the cylinder and pulled using a constant force F. The resulting angular acceleration of the cylinder is 5.0 rad/s2. What's the angular velocity after 4.0 s, in radians per second? (The moment of inertia of the cylinder is 1 half M R...
An 86.0 kg solid sphere of radius 0.450m start from rest and turns with constant angular...
An 86.0 kg solid sphere of radius 0.450m start from rest and turns with constant angular acceleration around the axle rod, rotating through 12.6 rad in 3.50 s a. calculate its angular velocity at this time. b. calculate its kinetic energy at the end of this process
A solid sphere of mass, M, and radius, R, is rigidly attached to a strong thin...
A solid sphere of mass, M, and radius, R, is rigidly attached to a strong thin rod of radius r that passes through the sphere at a distance of R/2. A string wrapped around the rod pulls with tension T. The rod's moment of inertia is negligible. (a) Find an expression for the sphere's angular acceleration. (b) If the sphere has a mass of 5.5 kg and a radius of 25 cm, how much tension must be applied to the...
A sphere of solid aluminum (r = 2.7 g/cm3 ) has a radius R, a mass...
A sphere of solid aluminum (r = 2.7 g/cm3 ) has a radius R, a mass M, and a moment of inertia I0 about its center. A second sphere of solid aluminum has a different mass M’ with a radius 2R. What is the moment of inertia of the second sphere about its center I in terms of the first sphere I0? Mass should not appear in your answer (4 points).
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is...
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A constant tangential force of 260 N applied to its edge causes the wheel to have an angular acceleration of 0.836 rad/s2. (a) What is the moment of inertia of the wheel? kg · m2
A small, solid cylinder with mass = 20 kg and radius = 0.10 m starts from...
A small, solid cylinder with mass = 20 kg and radius = 0.10 m starts from rest and rotates without friction about a fixed axis through its center of mass. A string is wrapped around the circumference of the cylinder and pulled using a constant force F. The resulting angular acceleration of the cylinder is 5.0 rad/s2. (The moment of inertia of the cylinder is 1/2 MR^2.) 1. What's the force F, in Newtons? 2. What's the angular velocity after...
A merry-goround (disk of mass m = 200 kg, radius R = 1.6m) is rotating clockwise...
A merry-goround (disk of mass m = 200 kg, radius R = 1.6m) is rotating clockwise at a an angular speed of w = 0.5 rad s . A kid of mass m = 50kg is riding on the edge of the merry-go-round. At a particular point in time, the kid jumps off the merry-go-round at a speed v = 5.0 m/s relative to the ground, at an angle of 53 degrees below the x-axis. Part 1: What is the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT