Thursday

September 18, 2014

September 18, 2014

Posted by **eric** on Tuesday, March 30, 2010 at 5:38pm.

dθ/dt = ω0 *e^-(σ*t)

where ω0 and σ are constants. The angular

speed changes from an initial angular speed of 3.08 rad/s to 1.58 rad/s in 3.92 s.

a)Determine the magnitude of the angular acceleration after 2.39 s. Answer in units of rad/s2.

b)How many revolutions does the wheel make after 1.9 s ?

c) Find the number of revolutions it makes before coming to rest.

help on any of these problems would be thankful

**Answer this Question**

**Related Questions**

college physics (inertia) - As a result of friction, the angular speed of a ...

college physics (inertia) - As a result of friction, the angular speed of a ...

Physics - A spherical shell of radius R carries a uniform surface charge density...

Physics - A spherical shell of radius R carries a uniform surface charge density...

Physics - A circuit contains a self-inductance L in series with a capacitor C ...

physics - As a result of friction, the angular speed of a wheel changes with ...

Differential Equations - The boundary value problem Ty"+ ρ(ω^2)y' = 0...

Physics - A ruler stands vertically against a wall. It is given a tiny impulse ...

Physics (Rotation) - In Fig. 10-28, wheel A of radius rA is coupled by belt B to...

Physics Classical Mechanics - A solid disk 1 with radius R1 is spinning freely ...