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Rotational motion
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Questions (1,742)
A wheel mounted on a stationary axle starts at rest and is given the following angular acceleration: 9-12t where t is the time
4 answers
asked by
Happinessdelight
2,571 views
A circular saw blade rotating at 3600 rpm is braked to a stop in 6 seconds. What is the angular acceleration? How many
4 answers
asked by
Anthony
1,720 views
A light string of length of 56.0 cm connects two small square blocks, each with a mass of 1.50 kg. The system is placed on a
slip
4 answers
asked by
Ricky
1,354 views
A child sits down on one end of a horizontal seesaw of negligible weight, 2.14 m from the pivot point. No one balances on the
5 answers
asked by
Kellie
1,045 views
1)A toy train is initially at rest on a track fastened to a bicycle wheel, which is free to rotate. How does the wheel respond
4 answers
asked by
Confused
2,865 views
An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. What is the tangential acceleration of a point 9.50 cm from
5 answers
asked by
anonymous
1,294 views
I just need some clarification on part (c). Here's the whole problem for context:
A uniform solid cylinder of mass 10 kg can
4 answers
asked by
Jamie
6,506 views
A light rope is wrapped several times around a large wheel with a radius of 0.435 m. The wheel?
A light rope is wrapped several
4 answers
asked by
BB
3,585 views
what is angular velocity if 57 revolutions are completed in 8 minutes?
4 answers
asked by
Devann
2,829 views
Show that the moment of inertia of a uniform rod about an axis through the middle and at
the end of a rod are given by MI/12 and
2 answers
asked by
Oluwasola Temidayo Godbless
52 views
a bicycle has a wheel of radius of 35.56cm.what is the angular speed of the wheels when the bicycle has a forward speed of
1 answer
asked by
Rama ^_^
152 views
In a amusement park ride, gondola cars of weight W are attached by rods 24ft long to a bull
wheel 16ft in diameter. The bull
4 answers
asked by
sam
582 views
A 5.0 gram coin is placed 5.0 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is
2 answers
asked by
L**
549 views
A 30 kg child on swing 2m long is released from rest
when the swing supports make an angle of 37 with the vertical a) neglecting
2 answers
asked by
Chala
146 views
A typical propeller of a turbine used to generate electricity from the wind consists of three blades as in the figure below.
4 answers
asked by
Shelby
2,774 views
A cylinder with moment of inertia I1 rotates with an angular velocity wo about a vertical, frictionless axle. Asecond cylinder
1 answer
asked anonymously
79 views
What is the angular displacement for an object makes 1.4 rev?
4 answers
asked by
Rama ^_^
136 views
An electric motor is attached to a small wheel that is rotating at a rate of 150 rev \min . if the motor is switched off so that
2 answers
asked by
Rama ^_^
108 views
Two ice skaters hold hands and rotate, making one revolution in 7.6 s. Their masses are 15 kg and 50 kg, and they are separated
5 answers
asked by
Amber
5,167 views
A drum (see Figure 10.2) has a radius of 0.40 m and a moment of inertia of 2.3 kg ∙ m2. The frictional torque of the drum axle
4 answers
asked by
anthony
2,271 views
A wheel rotates with a constant angular acceleration of 3.50 rad/s2. The angular speed of the wheel is 2.00 rad/s at t = 0. If
4 answers
asked by
Diane M.
1,688 views
You are a 70kg astronaut floating at rest in zero gravity holding your laptop. Your hard drive turns on (increasing from 0 to
2 answers
asked by
anonymous
668 views
A certain CD has a playing time of 72 minutes. When the music starts, the CD is rotating at an angular speed of 4.8 102
2 answers
asked by
nn
1,328 views
A 12.1 g CD with a radius of 6.16 cm rotates with an angular speed of 31.1 rad/s. What is its kinetic energy?
4 answers
asked by
Megan
1,535 views
A solid disk (mass = 1 kg, R=0.5 m) is rolling across a table with a translational speed of 9 m/s.
a.) What must the angular
4 answers
asked by
kelsey
528 views
A turntable reaches an angular speed of 33.3 rpm, in 2.0 s, starting from rest.
(a) Assuming the angular acceleration is
3 answers
asked by
Megan
3,820 views
A flywheel rotating at 5.3 revolutions per second has an angular retardation of 4/5 radian per second per
1 answer
asked by
dan
502 views
A string is wrapped around the rim of a flywheel 0.400 m in radius, and a steady pull of 50.0 N is exerted on the cord. The
3 answers
asked by
Sunny
1,097 views
If the mine winch drum diameter is 6m calculate how far the counterweight will fit for each single rotation of the drum
29 answers
asked by
dimpho
17,470 views
It is desired that the outer edee of a grindine wheel 9.0 cm in radius move at a rate of 6.0 m/s. (a) Determine the angular
4 answers
asked by
Hajara
88 views
A coin sits 0.10m from the center of a
record player spinning at 45rpm. a) What is the frequency in Hertz?
4 answers
asked by
Mike
97 views
A cylinder with moment of inertia I1 rotates with an angular velocity wo abouta vertical, frictionless axle. A second cylinder
1 answer
asked anonymously
79 views
The system of small object is rotating at 2rad/s. If the object are connected by small light spokes that can be lengthened or
2 answers
asked anonymously
77 views
A new ride is being designed for Dubailand. The ride will have 80 identical carts placed 15 m away from the center. Each cart
2 answers
asked by
^_^
100 views
Determine the moment of inertia for three teenagers weighing 60.0 kg, 45.0 kg, and 80.0 kg sitting at different points on the
2 answers
asked by
^_^
140 views
Assume that the Earth is a solid sphere of constant density, with mass 5.98 × 1024 kg and radius 6370 km.
What is the moment of
2 answers
asked by
Rama ^_^
75 views
An airplane propeller slows from 14 rad/s to 1.3 rad/s as the propeller completes 14 revolutions. Find the angular acceleration
2 answers
asked by
Rama ^_^
88 views
An airplane propeller slows from 14 rad/s to 1.3 rad/s as the propeller completes 14 revolutions. Find the angular acceleration
2 answers
asked by
Rama ^_^
105 views
An airplane propeller slows from 14 rad/s to 1.3 rad/s as the propeller completes 14 revolutions. Find the angular acceleration
1 answer
asked by
Rama ^_^
114 views
which of the following is not a unit of rotational ,speed?
a)meter per second b)revolutions per minute c) revolutions per second
4 answers
asked by
Rama ^_^
61 views
an object completes 1.5 circular in half a minute. what is it's angular velocity?
1 answer
asked by
Rama ^_^
39 views
which of the following is not a unit of rotational speed ?
a)meters per second b)revolutions per minute c)revolutions per second
1 answer
asked by
Rama ^_^
59 views
which would have a greater linear velocity ?
A)kid near the center of the merry go round B)kid near the outside of the merry go
1 answer
asked by
Rama ^_^
66 views
A cylinder with moment of inertia I1 rotates with an angular velocity Wo about a vertical frictionless axle. Asecond cylinder
1 answer
asked anonymously
75 views
A horizontal plat form in the shap of a circular disk rotates in a horizontal plane about a frictionless vertical axle. The plat
7 answers
asked anonymously
125 views
The system of small object is rotating at 2rad/s. If the object are connected by small light spokes that can be lengthened or
1 answer
asked anonymously
78 views
The resistance of an object to change its rotational
motion about an axis is
2 answers
asked anonymously
52 views
A disk initially at rest is given an angular
acceleration of 12rad/s. What is its frequency after 10 seconds?
2 answers
asked anonymously
38 views
A small block placed on the surface of a horizontal disc at a point 6 cm from the centre of the disc .The block is on the point
2 answers
asked by
Sandra
51 views
A car is traveling at 34 miles per hour. If its tires have a diameter of 14 inches, how fast are the car’s tires turning?
4 answers
asked by
EBB
1,560 views
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