A 0.12-m radius grinding wheel takes 5.5-s to speed up from 2.0 rad/s to 11.0 rad/s. ...

Question

Question

A 0.12-m radius grinding wheel takes 5.5-s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?

science physics

Answer 1

✔ Recommended Answer

Answer #1

Recall the kinematics equation:

a = v_f-v_i / t

which is the same as saying

α = (ω_f - ω_i) / t

So plug in your numbers:

α = (11.0 - 2.0 rad/s) / 5.5s

α = 1.64 rad/s²

Answer 2

Answer #2

1.6 rads/s²

answered by: Regor Aguinaldo

Answer 3

Similar Homework Help Questions

13 A 1.0 m radius grinding wheel takes 55 s to speed up from 20 rad/sto...

13 A 1.0 m radius grinding wheel takes 55 s to speed up from 20 rad/sto 11.0 rad/s. What is the wheels average angular acceleration? a 9 6 radis b. 4 8 radis c 16 radis d 0.33 rad's fit 14. A bowing ball has a mass of 80 kg a moment of inertia of 28 x 107 kg*mand a radius of 0.10 m rolls down the lane without slipping at a linear speed of 40 m/s, what is its...
At time t=0 a grinding wheel has an angular velocity of 20.0 rad/s . It has...

At time t=0 a grinding wheel has an angular velocity of 20.0 rad/s . It has a constant angular acceleration of 30.0 rad/s2 until a circuit breaker trips at time t = 1.90 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? B. At what time does the wheel...
At time t=0 a grinding wheel has an angular velocity of 23.0 rad/s . It has...

At time t=0 a grinding wheel has an angular velocity of 23.0 rad/s . It has a constant angular acceleration of 35.0 rad/s2 until a circuit breaker trips at time t = 1.90 s . From then on, the wheel turns through an angle of 433 rad as it coasts to a stop at constant angular deceleration. Through what total angle did the wheel turn between t=0 and the time it stopped? At what time does the wheel stop? What...

A wheel of radius 1 m is rotating with a constant angular speed of 1 rad/s....

A wheel of radius 1 m is rotating with a constant angular speed of 1 rad/s. What is the linear speed of a point on the wheel's rim? a.) 0.5 m/s b.) 1 m/s c.) 3.14 m/s d.) 6.28 m/s
A wheel accelerates with a constant angular acceleration of 4.5 rad/s2 from an initial angular speed...

A wheel accelerates with a constant angular acceleration of 4.5 rad/s2 from an initial angular speed of 1.0 rad/s. a. What is the wheel's angular displacement during the first 2.0 s? b. What is its angular speed at that ?
At time t = 0 a grinding wheel has an angular velocity of 30.0 rad/s It has a constant angular acceleration of 28.0 rad/s^2 until a circuit breaker trips at time t = 2.30 s

A Spinning Grinding Wheel At time t = 0 a grinding wheel has an angular velocity of 30.0 rad/s It has a constant angular acceleration of 28.0 rad/s^2 until a circuit breaker trips at time t = 2.30s. From then on, the wheel turns through an angle of 436 rad as it coasts to a stop at constant angular deceleration. Through what total angle did the wheel turn between t = 0 and the time it stopped? At what time does...

At time t=0 a grinding wheel has an angular velocity of 24.0 rad/s. It has a constant angular acceleration of 35.0 rad/...

At time t=0 a grinding wheel has an angular velocity of 24.0 rad/s. It has a constant angular acceleration of 35.0 rad/s^2 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? answer in rad b.) At what time does the...
A wheel (radius = 0.20 m) starts from rest and rotates with a constant angular acceleration of 2.0 rad/s2

A wheel (radius = 0.20 m) starts from rest and rotates with a constant angular acceleration of 2.0 rad/s2. At the instant when the angular velocity is equal to 1.2 rad/s, what is the magnitude of the total linear acceleration (in m/s2) of a point on the rim of the wheel? 0.29 0.4 0.49 0.69
At time t=0 a grinding wheel has an angular velocity of 22.0 rad/s . It has...

At time t=0 a grinding wheel has an angular velocity of 22.0 rad/s . It has a constant angular acceleration of 29.0 rad/s2 until a circuit breaker trips at time t = 2.10 s . From then on, the wheel turns through an angle of 436 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? Express your answer in radians. (b) At...

At time t=0 a grinding wheel has an angular velocity of 30.0 rad/s . It has...

At time t=0 a grinding wheel has an angular velocity of 30.0 rad/s . It has a constant angular acceleration of 34.0 rad/s2 until a circuit breaker trips at time t = 2.30 s . From then on, the wheel turns through an angle of 433 rad as it coasts to a stop at constant angular deceleration. Part A Through what total angle did the wheel turn between t=0 and the time it stopped? Express your answer in radians. Part...