Posted by Mia on Tuesday, November 6, 2012 at 3:45pm.
A solid, horizontal cylinder of mass 11.0 kg and radius 1.70 m rotates with an angular speed of 5.10 rad/s about a fixed vertical axis through its center. A 1.21 kg piece of putty is dropped vertically onto the cylinder at a point 0.600 m from the center of rotation and sticks to the cylinder. Determine the final angular speed of the system.

Physics HELP!  Elena, Tuesday, November 6, 2012 at 3:54pm
The law of conservation of angular momentum
I₁•ω₁ = I₂•ω₂
I₁ =mR²/2, ω₁ = 5.1 rad/s
I₂ = mR²/2 +m₀•R². ω₂ = ?
(mR²/2) • ω₁=(mR²/2 +m₀•R²)•ω₂
Solve for “ ω₂ “

Physics HELP!  Mia, Tuesday, November 6, 2012 at 3:59pm
The value I am getting is saying its too large, how large is your value?

Physics HELP!  Elena, Tuesday, November 6, 2012 at 4:15pm
The law of conservation of angular momentum
I₁•ω₁ = I₂•ω₂
I₁ =mR²/2, ω₁ = 5.1 rad/s
I₂ = mR²/2 +m₀•r². ω₂ = ?
(mR²/2) • ω₁=(mR²/2 +m₀•r²)•ω₂
ω₂ =(mR²/2) • ω₁/(mR²/2 +m₀•r²)=
=m•R²•ω₁/(m•R²+2 •m₀•r²)=
=11•1.7²•5.1/(11•1.7² +2•1.21•0.6²) =
=4.96 rad/s
Answer This Question
Related Questions
 physics  A solid, horizontal cylinder of mass 12.0 kg and radius 2.30 m rotates...
 physics  A solid, horizontal cylinder of mass 8.0 kg and radius 1.30 m rotates ...
 physics  Each of the following objects has a radius of 0.169 m and a mass of 2....
 INTRO TO PHYSICS  Each of the following objects has a radius of 0.174 m and a ...
 physics  Each of the following objects has a radius of 0.180 m and a mass of 2...
 physics  Each of the following objects has a radius of 0.180 m and a mass of 2...
 Physics  A solid cylinder of mass 20 kg rotates about its axis with angular ...
 physics  A bullet of mass = 0.13 kg is fired with a velocity of = 87.1 m/s into...
 Physics  In a fairground ride a child of mass 37 kg stands against the inside ...
 Physics Angular Momentum  A bullet with a mass m = 4.83 g and initial speed of ...
More Related Questions