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Angular motion
Page 4
Questions (223)
A remote-controlled car’s wheel accelerates at 22.6 rad/s2.
If the wheel begins with an angular speed of 10.6 rad/s, what is
2 answers
asked by
morg
812 views
A cyclist starts from rest and pedals so that the wheels make 7.7 revolutions in the first 5.1 s. What is the angular
2 answers
asked by
Max
801 views
The figure shows a golf ball passing through a windmill at a miniature golf course. The windmill has 8 blades and rotates at an
1 answer
asked by
Andrew
804 views
A point on the rim of a 0.75 m diameter grinding wheel changes speed at a constant rate from 15 m/s to 21 m/s in 6.2 s. What is
3 answers
asked by
Britney
787 views
A baton twirler tosses a baton into the air with an initial angular velocity of 2 rev/s (revolutions per second). The baton
2 answers
asked by
Brian
796 views
You like to swim at a nearby lake. On one side of the lake is a cliff, and the top of the cliff is 69 m above the surface of the
2 answers
asked by
Anon
768 views
A wheel on a moving car slows uniformly from 420 rpm to 120 rpm in 4 sec.
A. What is the angular acceleration of the wheel? B.
2 answers
asked by
piggy
768 views
An aerialist on a high platform holds onto a trapeze attached to a support by an 7.9-m cord. (See the drawing.) Just before he
3 answers
asked by
Anonymous
754 views
A dentist's drill starts from rest. After 3.00 s of constant angular acceleration it turns at a rate of 2.8 104 rev/min.
(a) Find
2 answers
asked by
Kelsey
751 views
A wheel spins on a horizontal axis, with an angular spped of 140rad/s and with its angular velocity pointing east. Determine the
2 answers
asked by
David
732 views
An automatic drier spins wet clothes at an angular speed of 4.8 rad/s. Starting from rest, the drier reaches its operating speed
2 answers
asked by
Zach
736 views
A student rides his bicycle at a constant speed of 2.20 m/s along a straight, level road. If the bike's tires each have a radius
1 answer
asked by
alba
698 views
a wheel with an angular velocity of 300. rev/min increases to 500. rev/min in 10.0 sec. what is the angular acceleration the
2 answers
asked by
sosa
702 views
The outer edge of a truck tire that has a radius of 20cm has a velocity of 21 m/s. what is the angular velocity of the tire in
2 answers
asked by
Jenni
674 views
The flywheel of a steam engine runs with a constant angular speed of 250 rev/min. When steam is shut off, the friction of the
2 answers
asked by
winterWX
700 views
The wheel of a bicycle is rotating from rest at a constant rate of 5.11rad/s2. How much is the increase in angular velocity (in
1 answer
asked by
help
685 views
A wheel 1.0m in diameter is rotating about a fixed axis with an initial angular velocity of 2rev.s-1.the angular acceleration is
4 answers
asked by
Nora
680 views
A tire placed on a balancing machine in a service station starts from rest and turns through 4.82 revolutions in 1.48 s before
3 answers
asked by
Emily
654 views
The angular position of a point on the rim of a rotating wheel is given by è = 8.0t - 3.0t2 + t3, where è is in radians and t
2 answers
asked by
Jess
658 views
The spin-drier of a washing machine slows down uniformly from 880 rpm (revolutions per minute) to 260 rpm while making 50
2 answers
asked by
Nina
642 views
A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine
2 answers
asked by
Natasha
639 views
A thin disk, mounted on a frictionless vertical shaft of negligible rotational inertia, is rotating at 495 revolutions per
1 answer
asked by
uma
637 views
A ball of mass m = 500g moves around a vertical axis with an angular speed ù. It is attached to two strings of length: the
2 answers
asked by
jamie
637 views
A pitcher throws a curveball that reaches the catcher in 0.64 s. The ball curves because it is spinning at an average angular
2 answers
asked by
Anonymous
620 views
A spinning wheel steadily slows from an initial angular velocity of 1.65 rev/s to 0.485 rev/s in 12.2 s.
(a) Calculate the
2 answers
asked by
Yesica
633 views
A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.50 x 104 rad/s to an angular speed of
1 answer
asked by
Anonymous
622 views
A flywheel of a radius .5 m starts from rest and under goes a uniform angular acceleration of 3 rad/sec2 for a period of 5
2 answers
asked by
Mary
620 views
A wheel starts from rest and in 10.65 s is rotating with an angular speed of 5.810 π rad/s.
(a) Find the magnitude of the
2 answers
asked by
joy
632 views
A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +20.5 rad/s. Then, the brakes are applied. In
1 answer
asked by
sean
618 views
A certain CD has a playing time of 76 minutes. When the music starts, the CD is rotating at an angular speed of 4.8 102
2 answers
asked by
John
607 views
An airplane is flying above an observer standing on the ground. At the moment it passes overhead, the observer judges by its
1 answer
asked by
Anonymous
605 views
A wheel on a moving car slows uniformly from 420 rpm to 120 rpm in 4 sec.
A. What is the angular acceleration of the wheel? B.
2 answers
asked by
tason
597 views
An aircraft piston engine starts from rest and accelerates to 1500rpm in 4.95s. This engine through a reduction gearbox drives a
2 answers
asked by
Lisa
589 views
A lathe, initially at rest, accelerates at .60 rad/s^2 for 10s, then runs at a constant angular velocity for 20s, and finally
2 answers
asked by
Joe
599 views
2. On the spin cycle on a washing machine, the drum holding the clothes goes from zero to 180 rpm (revolutions per minute) in
2 answers
asked by
jeff
597 views
During an acceleration, the angular speed of an engine increases from 900 rpm to 2800 rpm in 4.5 s. What is the average angular
2 answers
asked by
Sandi
583 views
An athlete spins in a circle before releasing a discus with a tangential speed of 9.0 m/s. If his angular speed at the moment of
2 answers
asked by
Anonymous
593 views
A ruler stands vertically against a wall. It is given a tiny impulse at such that it starts falling down under the influence of
11 answers
asked by
juanpro
575 views
A child pushes a merry go-round from rest to a final angular speed of 0.78 rev/s with constant angular acceleration. In doing
2 answers
asked by
Joe
569 views
A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +18.5 rad/s. Then, the brakes are applied. In
2 answers
asked by
Lauren
572 views
a motor turns 21.6 revolutions in 0.75 second. what is the angular speed of the motor in rpm? in radians per second?
2 answers
asked by
joshua
565 views
Force, Work, and Rotation Question? Please Help!?
You are sitting on a stool that is free to rotate without friction, and you are
1 answer
asked by
igore
561 views
an airplane is flying at an altitude of 6.7 miles towards a point directly over an observer. if the speed of the plane is 499
2 answers
asked by
Mindy
544 views
The propeller of a plane rotate clockwise at 26900 rpm. What is the angular acceleration (in rad/s2) of the propeller if it
2 answers
asked by
Anonymous
540 views
The world record for revolutions per minute for an ice skater is 308 RPM, held by Natalia Kanounnikova. You can see a video of
3 answers
asked by
Bob
554 views
The flywheel of a steam engine runs with a constant angular speed of 164 rev/min. When steam is shut off, the friction of the
2 answers
asked by
question
542 views
A child exerts a tangential 41.9-N force on the rim of a disk-shaped merry-go-round with a radius of 2.25 m. If the
2 answers
asked by
aok
530 views
#1
An electric motor rotating a workshop grinding wheel at a rate of 231 rev/min is switched off. Assume constant angular
2 answers
asked by
bryannn
545 views
a golf club 1.01 m long completes a downswing in .25s through a range of 180 degrees. Assume a uniform (constant) angular
2 answers
asked by
marie
576 views
A circular disk starts from rest and spins around its central axis until it reaches 10 rad/s in 30 seconds at a constant angular
2 answers
asked by
Jessica
517 views
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Parent Categories (10)
Dynamics
Kinematics
Mechanics
Mechanics / Motion
Mechanics of Motion
Motion
Motion and Forces
Physics
Projectile Motion
Rotation