Answer to Question #85178 in Physics for anna

Question #85178

A disk completed 64.0 revolutions and goes 80 rad/s what is angular accerleration?

Expert's answer

If ω_0=0 rad/s.

ϕ=α t^2/2

ω=αt→t=ω/α

ϕ=α (ω/α)^2/2=ω^2/2α

Angular acceleration:

α=ω^2/2ϕ=〖80〗^2/(2(2π)(60))=8.49 rad/s^2 .

Learn more about our help with Assignments: Physics

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. ( n = 2.20) at an angle of 560 to the normal. What is the refracted angle?
2. I have a spreadsheet contains the Internal Quantum Efficiency data as a function of wavelength for a
3. An aircraft on its take off run has a steady acceleration of 3m/s^2. What velocity does the aircra
4. A stone is dropped from rest from a building that is 100 meters tall. a) Find the velocity after 2
5. What value of x, y, and z, will the equation P^x v^y T^z = constant, become Boyles law? (P ∝1/V at
6. Jay fills a wagon with sand (about 20 kg) and pulls it with a rope 60 m along the beach. He holds th
7. A race car driver must average 200.0 km/h over the course of a time trial lasting ten laps. If the f