Question

A rotating wheel requires 7.00 s to rotate 30.0 revolutions. Its angular velocity at the end of the 7.00-s interval is 96.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel?

Answer #1

A rotating wheel requires 2.96-s to rotate through 37.0
revolutions. Its angular speed at the end of the 2.96-s interval is
98.2 rad/s. What is the constant angular acceleration of the
wheel?
rad/s2

A wheel requires 10.0 s to rotate 50.0 revolutions. Its angular
velocity at the end of the 10.0-s interval is 40.0 rad/s.
(a)What is initial angular speed of the wheel?
(b) What is the constant angular acceleration of the wheel?

At t=0 a grinding wheel has an angular velocity of 30.0
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,
it turns through an angle 440 rad as it coasts to a stop at
constant angular acceleration.
Q1: Through what total angle did the wheel turn between
t=0 and the time it stopped?
Q2: At what time did it stop?
Q3: What was...

The angular position of a point on the rim of a rotating wheel
is given by ? = 6.0t - 2.0t2 + t3, where ? is in radians and t is
in seconds. (a) What is the angular velocity at t = 2 s? rad/s
(b)What is the angular velocity at t = 4.0 s? rad/s (c) What is the
average angular acceleration for the time interval that begins at t
= 2 s and ends at t = 4.0...

A wheel released from rest is rotating with constant angular
acceleration of 2.5 rad/s2.
(a) After 2.5 s, what is its angular velocity?
rad/s
(b) Through what angle has the wheel turned?
rad
(c) How many revolutions has it made?
rev
(d) What is the speed of a point 1.0 m from the axis of
rotation?
m/s
What is the magnitude of the total acceleration of the same
point?
m/s2

A heavy turntable, used for rotating large objects, is a solid
cylindrical wheel that can rotate about its central axle with
negligible friction. The radius of the wheel is 0.330 m. A constant
tangential force of 300 N applied to its edge causes the wheel to
have an angular acceleration of 0.876 rad/s2.
(a)
What is the moment of inertia of the wheel (in kg ·
m2)?
_____ kg · m2
(b)
What is the mass (in kg) of the...

A wheel of diameter 0.35 m is rotating at 2700 rpm.
Calculate its angular velocity in radians per second. Use
'rad/s' for your units.
What is the linear speed of a point on the edge of this
wheel?
What is the linear acceleration of a point on the edge of this
wheel?

wheel is rotating about an axis that is in the z-direction. The
angular velocity ?z is -6.00 rad/sat t = 0, increases linearly with
time, and is +4.00 rad/s at t = 12.0 s . We have taken
counterclockwise rotation to be positive.
Part A
Part complete
Is the angular acceleration during this time interval positive or
negative?
positive
negative
SubmitPrevious Answers
Correct
The angular acceleration is positive, since the angular velocity
increases steadily from a negative value to a...

PRACTICE IT
A wheel rotates with a constant angular acceleration of 3.25
rad/s2. Assume the angular speed of the wheel is 2.20
rad/s at ti = 0.
(a) Through what angle does the wheel rotate between t
= 0 and t = 2.00 s? Give your answer in radians and
revolutions.
___________ rad
___________ rev
(b) What is the angular speed of the wheel at t = 2.00
s?
___________rad/s
(c) What angular displacement (in revolutions) results while the
angular...

A flywheel slows from 655 to 400 rev/min while rotating through
20 revolutions.
What is the (constant) angular acceleration of the
flywheel?
α=α= rad/s2
How much time elapses during the 20 revolutions?
t=t= s
Calculate the rotational kinetic energy of a 13-kg motorcycle
wheel if its angular velocity is 141 rad/s and its inner radius is
0.280 m and outer radius 0.330 m.
KErot = J

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 35 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago