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Rotational Dynamics
Page 2
Questions (87)
A thin uniform rod is rotating at an angular velocity of 7.70 rad/s about an axis that is perpendicular to the rod at its
1 answer
asked by
meagan
1,157 views
A diver can change his rotational inertia by drawing his arms and legs close to his body in the tuck position. After he leaves
2 answers
asked by
stephanie
1,037 views
A computer is reading data from a rotating CD-ROM. At a point that is 0.0382 m from the center of the disk, the centripetal
2 answers
asked by
Anonymous
961 views
block 1 has mass m1 = 480 g, block 2 has mass m2 = 540 g, and the pulley is on a frictionless horizontal axle and has radius R =
2 answers
asked by
Ashley
947 views
A round body of mass M, radius R, and moment of inertia I= BMR^2 is rolling without slipping. Its kinetic energy can be
1 answer
asked by
Jason
961 views
Three children are riding on the edge of a merry–go–round that is 84 kg, has a 1.40–m radius, and is spinning at 20.0 rpm.
7 answers
asked by
Ashley
923 views
A runner of mass m = 58 kg and running at 2 m/s runs as shown and jumps on the rim of a playground merry-go-round which has a
2 answers
asked by
Anonymous
883 views
A 24.5-kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg • m2 and radius 2.40 m.
3 answers
asked by
Anonymous
868 views
A 36 cm diameter wheel accelerates uniformly about its center from 150 rpm to 360 rpm in 3.6 s. Determine the radial component
1 answer
asked by
David colon
918 views
A 1.6 kg disk with radius 0.63 m is rotating freely at 55 rad/s around an axis perpendicular to its center. A second disk that
2 answers
asked by
MD
1,203 views
A circular disk of mass 0.3 kg and radius 40 cm, initially not rotating, slips down a thin spindle onto a turntable (disk) of
1 answer
asked by
John
774 views
A 2.0 kg ball and a 3.5 kg ball are connected by a 2.0 m long rigid, massless rod. The rod and balls are rotating clockwise
3 answers
asked by
Kevin
730 views
The Earth has an angular speed of 7.272·10-5 rad/s in its rotation. Find the new angular speed if an asteroid (m = 3.45·1022
1 answer
asked by
Joe Frank
724 views
You are holding the axle of a bicycle wheel with radius 35 cm and mass 1 kg. You get the wheel spinning at a rate of 55 rpm and
1 answer
asked by
Ashely
722 views
A person exerts a tangential force of 34.8 N on the rim of a disk-shaped merry-go-round of radius 2.60 m and mass 152 kg. If the
1 answer
asked by
Madison
692 views
A solid, horizontal cylinder of mass 8.0 kg and radius 1.30 m rotates with an angular speed of 5.50 rad/s about a fixed vertical
1 answer
asked by
Dani
654 views
A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with an angular velocity of 0.300 rev/s. What is
1 answer
asked by
Eric
632 views
The system of small objects shown in the figure below is rotating at an angular speed of 2.0 rev/s. The objects are connected by
2 answers
asked by
mark
631 views
A student stands on a rotating disk holding 4-kg objects with each hand. hen his arms are extended horizontally, the object are
1 answer
asked by
piggy
607 views
A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the
2 answers
asked by
Jessica
577 views
Suppose the surface (radius = r) of the space station in the figure is rotating at 38.6 m/s. What must be the value of r for the
2 answers
asked by
Don
569 views
A physics student of mass mm = 100 kg gets a summer job painting houses. On his first project, he builds a platform using large
4 answers
asked by
Jacob
557 views
can you tell me what i did wrong on this problem
Rigid rods of negligible mass lying along the y axis connect three particles.
2 answers
asked by
phys
557 views
A 44.8- child is standing on the outer edge of a merry-go-round that has moment of inertia 981 and radius 2.40 . The entire
2 answers
asked by
Anonymous
534 views
A stopper tied to the end of a string is swung in a horizontal circle. If the mass of the stopper is 13.0 g, and the string is
3 answers
asked by
Help ?!
542 views
A horizontal circular platform (m = 122.1 kg, r = 3.43m) rotates about a frictionless vertical axle. A student (m = 82.3kg)
2 answers
asked by
taylor
511 views
1.) A lawnmower engine claims to provide 18 hp of power and 6.25 ft lb of torque. If this is true, what must be the rotational
1 answer
asked by
Carl
500 views
A uniform 2.20 kg sign of height 0.600 m hangs freely from a frictionless pivot. (Its extension into the page is irrelevant:
4 answers
asked by
Alphonse
502 views
A uniform 5.32 kg solid sphere of radius 0.344 m that is free to roll on a horizontal surface has a light axle passing through
1 answer
asked by
Alphonse
470 views
A 68.6 kg solid aluminum cylindrical wheel of radius 0.45 m is rotating about its axle in frictionless bearings with angular
1 answer
asked by
Marthy
454 views
How much torque is required to accelerate a uniform sphere of mass 10,000.0 kg and radius 2.5 meters from rest to an angular
1 answer
asked by
Dallas
451 views
A large circular disk of mass 2kg and radius 0.2m initially rotating at 50rad/s is coupled a smaller circular disk of mass 4kg
1 answer
asked by
Hanaayana
53 views
during a throw an athlete exerts a net average torque of 123Nm on a discus about its axis of spin. the mass of the discus is
1 answer
asked anonymously
14 views
A Flywheel with a mass of 320 Kg and radius of gyration of 26 cm accelerates from rest to 750 rpm in
10 seconds. Calculate: the
1 answer
asked anonymously
11 views
A torque of 77.7 Nm causes a wheel to start from rest , completes 5.55 revolutions and attains a final angular velocity of 88.8
1 answer
asked anonymously
7 views
. A disk slides toward a motionless stick on a frictionless surface.
b. The disk hits the stick at one end and adheres to it, and
1 answer
asked anonymously
7 views
What is torque the rotational analogue of
1 answer
asked anonymously
6 views
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Parent Categories (6)
Astrophysics
Circular motion
Classical mechanics
Mechanics
Newtonian Mechanics
Physics