Log in
Physics
1
answer
0
watching
312
views

A shaft is turning at 65.0 rad/s at time t = 0. Thereafter, its angular acceleration is given by

 

where α is in rad/s2 and t is in seconds. (a) Find the angular speed of the shaft at t = 3.00 s. (b) Through what angle does it turn between t = 0 and t = 3.00 s?

Watch
1
answer
0
watching
312
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Tauseef Shaikh
Tauseef ShaikhLv10
30 Oct 2020

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

The pinion gear A on the motor shaft is given a constant angular acceleration a = 3 rad/s2. If the gears A and B have the dimensions shown, determine the angular velocity and angular displacement of the output shaft C, when t =2 s starting from rest. The shaft is fixed to B and turns with it.

I have tried to figure this out a few times, but I keep getting thewrong answer. I thought it would simply be the integral for both,but no luck. For (a) I tried At + (1/2)Bt2, At + (1/2)Bt2 + C, andAt + (1/2)Bt2N + ?. Not really sure what to do from here. Any helpis appreciated.


A shaft is turning at angular speed ? at time t = 0. Thereafter,its angular acceleration is given by
a = A + Bt

(a) Find the angular speed of the shaft at time t. (Use anyvariable or symbol stated above as necessary.)
?(t) = ?

(b) Through what angle does it turn between t = 0 and t? (Use anyvariable or symbol stated above as necessary.)
?? = ?

At time t=0 a grinding wheel has an angular velocity of 27.0 rad/s . It has a constant angular acceleration of 30.0 rad/s2 until a circuit breaker trips at time t = 2.50 s. From then on, the wheel turns through an angle of 440 rad as it coasts to a stop at constant angular deceleration.

a.) Through what total angle did the wheel turn between t=0 and the time it stopped? (in radians)

b.) At what time does the wheel stop? (in seconds)

c.) What was the wheel's angular acceleration as it slowed down? (in radians per second)

Weekly leaderboard

Home
Homework Help 3,900,000
Physics 110,000
Start filling in the gaps now
Log in