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Rotational motion
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Questions (1,741)
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg*m^2. The wheel rotates about the axle at a constant
3 answers
asked by
Anonymous
971 views
A Wheel of radius 14in. is rotating 0.5 rad/sec. What is the linear speed v, the angular speed in RPM ( rev per min), and the
4 answers
asked by
Dan
4,531 views
A car leaves an intersection after a light turns green. It starts from rest and reaches a speed of 13.4 m/s in 5.0 s. The radius
4 answers
asked by
clara
2,331 views
Just after a motorcycle rides off the end of a ramp and launches into the air, its engine is turning counterclockwise at 7530
3 answers
asked by
Anonymous
1,898 views
A uniform spherical shell of mass M and radius R rotates about a vertical axiss on frictionless bearings. A massless cord passes
4 answers
asked by
Kristen
1,472 views
Sorry I've tried 3 different ways to answer this and all have been wrong, please help me out!
The moment of inertia of a 1.1 kg
6 answers
asked by
Sally
1,212 views
An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its
2 answers
asked by
dmkp
524 views
A 0.500 kg wheel that has a moment of inertia of 0.015 kg m^2 is initially turning at 30 rev/s. it starts to rest after 163
4 answers
asked by
krisna
2,897 views
A 500 N weight is attached to a stiff rod of negligible weight that is hinged to one end. The rod is released from rest in
3 answers
asked by
Mac
978 views
A ball of mass m is attached by two strings to a vertical rod. as shown above. The entire system rotates at constant angular
3 answers
asked by
tammy
2,792 views
if a skater is rotating a spin at a constant angular velocity at 2.5 rad/s for 1.1s, what is the angular acceleration?
3 answers
asked by
anna
764 views
A wheel of radius 0.43 m spins at a rate such that a point on the rim of the wheel has an acceleration of 43 m/s^2. How many
1 answer
asked by
Anonymous
132 views
Determine the linear velocity of a point rotating at 25 revolutions per minute at a distance of 2 feet from the center of the
4 answers
asked by
Patrick
1,796 views
A wheel starts from rest and has an angular acceleration of 4.0 rad/s^(2). When it has made 10 rev its angular velocity is:
5 answers
asked by
jay
5,566 views
Calculate the rotational inertia of a meter stick, with mass 0.58 kg, about an axis perpendicular to the stick and located at
9 answers
asked by
Ryan
1,770 views
A Ferris wheel 28.0m in diameter rotates once every 21.0s.
What is the ratio of a person's apparent weight to her real weight at
4 answers
asked by
Confused
1,344 views
A long thin rod of mass M=2.00 kg and length L=75.0 cm is free to rotate about its center. Two identical masses (each of mass m
4 answers
asked by
Miki
2,849 views
If the mine winch drum diameter is 6m , calculate how far the cage will drop for single rotation of the drum
4 answers
asked by
Samkele
1,521 views
suppose that the surface (radius=r) of the space station is rotating at 35.8 m/s. what must be the value of r for the astronauts
5 answers
asked by
Leah- PLEASE HELP!!! :)
4,352 views
A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is
1 answer
asked by
winterWX
649 views
A person is riding a ferris wheel that turns at a constant speeed. The lowest point of the ferris wheel is at ground level.
4 answers
asked by
REALLY URGENT
1,348 views
When a pitcher throws a curve ball, the ball is given a fairly rapid spin. A 0.15 kg baseball with a radius of 3.7 cm is thrown
4 answers
asked by
kelsey
2,057 views
A record turntable is rotating at 33 and 1/3 rev/min. A watermelon seed is on the turntable 7.5 from the axis of rotation
Calcula
3 answers
asked by
Kristen
1,696 views
A long string is wrapped around a 6.4-cm-diameter cylinder, initially at rest, that is free to rotate on an axle. The string is
1 answer
asked by
M
819 views
You are standing on the equator of the earth (radius 3960 miles). What is your linear and angular speed?
5 answers
asked by
Anonymous
6,764 views
A yo-yo has a rotational inertia of 760 g·cm2 and a mass of 200 g. Its axle radius is 4.0 mm, and its string is 100 cm long.
2 answers
asked by
Xavier Hernandez
667 views
A wheel rotates at 100 revolutions per second. find the angle velocity in radians per second.
4 answers
asked by
makaela
1,999 views
A car is traveling with a velocity of 17 m/s on a straight horizontal highway. The wheels of the car have a radius of 48 cm. If
4 answers
asked by
fisha
1,790 views
A wheel rotates about an axis passinG through the centre and perpendicular to the plane with slowly increasinG angular
4 answers
asked by
SAGAR
1,602 views
The angle of a rotating shaft turns in t seconds is given by theta= ω+1/2at^2
and it is given that ω=3 2 rad/s and α=0.6 rad/s
4 answers
asked by
VINNY
1,084 views
A computerized spin balance machine rotates a 35-inch-diameter tire at 400 revolutions per minute.
(a) Find the road speed (in
5 answers
asked by
Jesse
4,042 views
A movie lasts 2 hours. During that time, what is the angular displacement of each of the following? a.the hour hand b.the minute
6 answers
asked by
matty
6,894 views
A cyclist accelerates from rest. After 7 s, the wheels have made 2 revolutions.
a. What is the angular acceleration of the
5 answers
asked by
MUHAMMAD JUNAID
2,885 views
a bicycle with 24inch diameter wheels is traveling at 15mi/hr.
a) Find the angular speed of the wheels in rad/min. b)How many
5 answers
asked by
Dan
19,075 views
A searchlight rotates at a rate of 4 revolutions per minute.?
The beam hits a wall located 13 miles away and produces a dot of
5 answers
asked by
saud
6,083 views
A merry-go-round with a a radius of R = 1.95 m and moment of inertia I = 192 kg-m2 is spinning with an initial angular speed of
5 answers
asked by
Lis
5,543 views
A space station, in the form of a wheel 110 m in diameter, rotates to provide an "artificial gravity" of 3.00 m/s2 for persons
4 answers
asked by
laura
13,475 views
A large horizontal circular platform (M=143.1 kg, r=3.01 m) rotates about a frictionless vertical axle. A student (m=75.3 kg)
6 answers
asked by
Molly
2,802 views
A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine
4 answers
asked by
kyle
6,124 views
Calculate the angular momentum and kinetic energy of a solid uniform sphere with a radius of 0.120 m and a mass of 14.0 kg if it
4 answers
asked by
Sarah
2,514 views
A paddle boat is propelled to the left in the figure above by a wheel of nine flat blades that rotate about a central axis.
4 answers
asked by
Help
1,323 views
A 500 g steel block
rotates on a steel table while attached to a 2.0-m-long massless rod. Compressed air fed through the rod is
4 answers
asked by
Kathleen
3,100 views
a pulley of 5cm radius on a motor is turning at 30 rev/s and slows down uniformly to 20 rev/s in 2s. calculate the angular
4 answers
asked by
Anonymous
3,274 views
If a cylindrical space station 300m in diameter is to spin about its central axis, at how many revolutions per minute rpm must
4 answers
asked by
Carmen
2,433 views
A toy train rolls around a horizontal 1.0-{\rm m}-diameter track. The coefficient of rolling friction is 0.15. What is the
5 answers
asked by
Anonymous
3,942 views
the minute hand of a large clock is 2 m long. what is its mean angular speed?
5 answers
asked by
akram
4,732 views
M, a solid cylinder (M=2.35 kg, R=0.111 m) pivots on a thin, fixed, frictionless bearing. A string wrapped around the cylinder
7 answers
asked by
Tomas
8,458 views
Roxanne is making a strawberry milkshake in her blender. A tiny .0050-kg strawberry is rapidly spun aroundhe inside of the
5 answers
asked by
julia
2,203 views
Suppose that a disk rotates through two revolutions in 5.5 seconds.
(a) What is its displacement in radians in this time? (b)
4 answers
asked by
Anonymous
3,460 views
Calculate the speed at the edge of a disc of radius 8.5 cm that rotates at the rate of 4 rev/s. Answer should be in units of m/s
4 answers
asked by
Bob
3,242 views
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