A flywheel has a mass of 5 kg and is 1.2 m in diameter. If its angular momentum is 4.5 kg∙m2 s , what is the flywheel’s tangential  velocity ?

Q: A uniform disk of mass 2.31 kg has a radius of 0.100 m and spins with a frequency of 0.550 rev/s.…

A: Angular momentum of the uniform disk is L=Iω=12mr2ω

Q: A ball is swung in a circle over the Cheshire Cat’s head before vanishing. If the ball has a mass of…

A: mass , m=0.500 kg radius of circle,r=1.00 m angular velocity,ω=10.0 rad/s

Q: A Ferris wheel starts at rest and builds up to a final angular speed of 0.70 rad/s while rotating…

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Q: A 2.25-kg particle moves at constant speed of 3.75m/s along a straight line. What is the magnitude…

A: The expression for the angular momentum is written as, Here, m, v and r represent the particle’s…

Q: A circular flywheel, with a diameter of 21 cm, accelerates uniformly from 22 rpm to 73 rpm in 2.3 s.…

A: diameter of flywheel (d) = 21 cm Radius of flywheel (R) = 10.5 cm Initial angular velocity = 22 rpm…

Q: An ice skater starts to spin with an angular velocity of 2 rotations per second, when she moves her…

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Q: 2) A 2.5 kg mass is moving in a straight line at 12.5 m/s towards the edge of a disk with a diameter…

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Q: merry-go-round goes around one complete rotation in time T = 9.00 s. What is the angular velocity,…

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Q: please explain throughly!!

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Q: A disk with a rotational inertia of 6.08 kg·m2 rotates like a merry-go-round while undergoing a…

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Q: A car travelling at 108 km/h . Given the the tires on the car have radius of 40 cm , what is their…

A: Given data: The speed of the car is V=108 km/h. The radius of the tire of the car is R=40 cm.…

Q: What is the angular momentum of a gymnast at rest with a rotational inertia of 60 kg•m2?

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Q: What is the angular momentum of a 0.210 kg ball rotating on the end of a thin string in a circle of…

A: In the given question, Mass of the ball (m) = 0.21kg Radius of the circular path (r) = 1.3m Angular…

Q: A small Ferris Wheel has a mass of approximately 5 000 kg and a radius of 5 m. If it's known to have…

A: Angular momentum (L) = m r2 w

Q: What is the angular momentum of a 0.25 kg mass rotating on the end of a piece of rope in a circle…

A: Given value--- mass = 0.25 kg. radius = 0.75 m. angular speed = 12.5 rad /s  We have to find---…

Q: In the figure, a solid cylinder of radius 8.2 cm and mass 5.9 kg starts from rest and rolls without…

A: From law of conservation of energy,Decrease of Potential Energy = Increase in Kinetic Energy

Q: A skater has a moment of inertia of 3 kg.m2 ( kilogram.meter squared) when her arms are outstretched…

A: Given Information:- Moment of inertia of the skater when her arms are outstretched is Ii=3 kg.m2…

Q: A disc with a mass of 1.31 kg rotates about an axis z (perpendicular to the disc) with an initial…

A: Given : Mass of the disc, m = 1.31 kg Initial angular velocity, w = 3.26 rad/s Moment of inertia, I…

Q: A 2.00 kg solid disk of 20.0 cm diameter is rotating at 200.0 rpm. A 1.00 kg narrow circular loop of…

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Q: The angular momentum of a sphere is given by  L = (−5.00t3) + (6.10 − 1.80t2) + (6.95t),  where L…

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Q: A figure skater rotating at 5.00 rad/s with arms extended has a moment of inertia of 2.25 kg ∙ m2.…

A: Given that: I1=2.25 kgm2I2=1.80 kgm2ω1=5.00 rad/swe need to determine the new angular speed ω2

Q: The propellers on the Titanic have a radius of 23.5 ft and weigh 38 tons each. If the propellers…

A: Given data: The radius of the propellers r=23.5ft Weight of the propellers W=38tons Number of turns…

Q: A uniform disk of mass 4.46 kg has a radius of 0.100 m and spins with a frequency of 0.550 rev/s.…

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Q: Rigid rods of negligible mass lying along the y axis connect three particles.: m1=4kg at (0,3)m,…

A: 310.96 J

Q: A wheel on a car has an angular momentum of 5.00 kg m2/s.  If the radius of the wheel is 0.25m, what…

A: Given data: Angular momentum is, L=5.00 kg·m2/s. Radius of wheel is, r=0.25 m.

Q: An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a…

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Q: A lathe rotates with an angular velocity of 3.00π rad/s. If the angular velocity decreases to 2.00π…

A: Given Data: The initial angular velocity is, ω=3π rad/s. The final angular velocity is, ω'=2π…

Q: A typical helicopter with four blades rotates at 300 rpm and has a kinetic energy of 2.45  105 J.…

A: Using rotational kinetic energy,

Q: During a certain time interval, the angular position of a rotating disk is described by 0=20-1+3r If…

A: Angular motion of a disk is described by the equation : θ(t) = 20-t+3t3 radω(t) = d[θ(t)]dt (Angular…

Q: A woman passes through a door with a tangential speed of 1.8 m/s from the center of the door, what…

A: When a force is applied on a body hinged at it one end, it tends to rotate the body about that…

Q: A grinder consists of a 5.34 kg steel block on a 1.87 m long arm that spins around a table. If the…

A: Use the Newton’s second law of motion,

Q: A child with a mass of 52 kg is riding on a merry-go-round. If the child has a speed of 3 m/s and is…

A: L=Iω=MR2vR=MRv

Q: You are happily spinning in your desk chair when at 3.50 rad/s. You lift your legs up and notice…

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Q: uniform ring with the mass of 4 kg and a radius of 20 cm is rotating at a rate of 20 rad/s. What is…

A: Mass m = 4kg  Radius R = 20cm  Radius R = 0.20 m    Angular speed =20 rad/s.  L = I ω  L = Mr2 ω  L…

Q: A bicycle wheel has an initial angular velocity of 1.50 rad/s. (a) If its angular acceleration is…

A: The first and the third equation of motion for the rotational motion is  w = wo + α tw2 = wo2 + 2 αθ…

Q: When kicking a football, the kicker rotates his leg about the hip joint. v = 36.5 m/s v2 = 22.5 m/s…

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Q: Starting from rest, a uniform cylindrical wheel (I=M R²) with 1.0 m diameter is rotating under a…

A: ω=ω0+αt ω0 = 0 ω = 3x4 =12 rad/sec Centripetal acceleration = ω2r =122 x 0.5 = 72 m/s2

Q: What is the moment of inertia of a cylinder of radius 5 m and mass of 5 kg?

A: Given  Mass of cylinder m = 5 kg Radius of cylinder R = 5m To find  Moment of inertia of cylinder

Q: A disk initially rotates counterclockwise at 1 rad/s, but has a counterclockwise angular…

A: Using kinematic equation, the expression for calculate angular position of disk when the…

Q: In the Olympic hammer throw, a contestant whirls a 7.3‐kg steel ball on the end of a 1.2‐m  cable.…

A: Angular momentum of any object is the product of its radius of rotation with the it linear momentum.…

Q: A force of 10 N is applied tangentially to a wheel of radius 0.50 m and causes an angular…

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.