A thin, 90.0 g disk with a diameter of 6.00 cm rotates about an axis through its center with 0.240 J of kinetic energy. What is the speed of a point on the rim?

Q: 40kg disk wiht a radius of 30 cm is spinning around a fixed vertical axis with an angular speed of…

A: According to the work-energy theorem, the work done is defined as the change in energy. The…

Q: A lawnmower engine brings a 1 m-long by 0.1 m-wide cutting blade of mass 2.55 kg from rest to an…

A: The length of the cutting blade: The width of the cutting blade: The mass of the cutting blade: The…

Q: A 1.7 kg solid sphere (radius = 0.20 mm ) is released from rest at the top of a ramp and allowed to…

A: When the sphere is at the top of the ramp and it is at rest, its kinetic energy is zero. Thus, the…

Q: A horizontal platform in the shape of a circular disk rotates freely in a horizontal plane about a…

A: Here L is constant therefore,

Q: The rigid body shown in the figure consists of three particles connected by massless rods. It is to…

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Q: A 1.00-kg particle moves in the xy plane with a velocity of v = (4.60 î - 3.20 ĵ) m/s. Determine the…

A: Angular momentum.

Q: A lawn mower has a flat, rod -shaped steel blade that rotates about its center. The mass of the…

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Q: The rigid body consists of three particles connected by massless rods. It is to be rotated about an…

A: Given: Mass M = 0.4 kg Side a = 30 cm. = 0.3 m. Side b = 50 cm = 0.5 m. Angular speed (ω) = 5.0…

Q: A solid sphere with radius 2.4m and mass of 77 kg has a moment of inertia given by2/5mr^2. It is…

A: 12Iω2=mg∆h1225mr2ω2=mg∆h             ∆h=r2ω25g

Q: 64.A tennis ball is a hollow sphere with a thin wall. It is set rolling without slipping at 4.03 m/s…

A: (a)Using the law of conservation of energy,

Q: Problem: A 2.0 kg turntable with a 20 cm diameter spins at 100 rpm (ignore friction in the axle),…

A: (A) The figure shows the pictorial representation of the turntable.

Q: The figure shows a rigid assembly of a thin hoop (of mass m = 0.14 kg and radius R = 0.19 m) and a…

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Q: Two wheels of moment of inertia 8.6 kg.m and 13 kg m² are set in rotation with angular speed 2.1…

A: The situation provided in the question reassembles the condition of inelastic collision. Thus, apply…

Q: f the mass of the bullet is 12.0 g, find (a) the initial speed of the bullet and (b) the energy…

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Q: For the purposes of this problem, treat the Earth as a solid, uniform sphere with mass 5.97x1024 kg…

A: It is given that, M=5.97×1024 kgRe=6.37×106 mRo=1.5×1011 m

Q: Two points, A and B are on a disc that rotates about an axis perpendicular to the plane of the disk…

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Q: Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the…

A: The moment of inertia of the wheel,

Q: The figure shows a rigid assembly of a thin hoop (of mass m = 0.30 kg and radius R = 0.17 m) and a…

A: Given :Mass of hoop, mh=0.30 kgRadius of hoop, R=0.17 mMass of rod, mr=0.30 kgLength of the rod,…

Q: Energy of a Bullet Dissipated by Plywood. As part of a criminal investigation, you need to determine…

A: To solve this problem, we need to follow these steps: 1. Calculate the time it takes for the bullet…

Q: Suppose a 225 kg motorcycle is heading toward a hill at speed of 35 m/s the two wheels weigh 12 kg…

A: Concept: Since, Friction is being neglected thus there will be conservation of Energy. The Equation…

Q: In the following figure we have a rotating rigid disk. How the magnitude of the angular velocity and…

A: Angular velocity is defined as the time rate of change in angular displacement i.e. the measure of…

Q: A 7.4 cm diameter uniform solid sphere has mass 420 g and is spinning at 2000 rpm. What's its…

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Q: A 1.70 m B T0.450 m oint B, find the spherical shell's translational speed vg (in m/s). m/s oint B,…

A: Given:- The mass of the spherical shell m = 1.90 kg  The radius of the spherical shell r = 0.140 m…

Q: The angular speed of a rotating disk is given by the equation: @ = (2rad/s) + (3rad/s?)t What is the…

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Q: A basketball starts from rest and rolls without slipping down a hill. The radius of the basketball…

A: Given information: Here, l is the length of the hill and θ is the hill’s inclination angle.

Q: A square plate has mass 0.600 kg and sides of length 0.150 m. It is free to rotate without friction…

A: Part (a) Given: The mass of square plate is m=0.600 kg. The length of the side is r=0.150 m. The…

Q: A 1.10 kg solid, uniform ball of radius 0.160 m is released from rest at point A in the figure…

A: Given:Mass,M=1.10 kgRadius,r=0.160 mHeight,hmax=1.60 mNow,A) Find the ball's translation speed,VBThe…

Q: A flywheel is a disk that is 0.3 m in radius and has a mass of 15kg. Mechanical energy can be stored…

A:

Q: Flywheels are solid, uniform disks that spin around an axis running through their center of mass and…

A: Write the expression for the kinetic energy of rotation. Here, E represents the energy, R…

Q: Consider a basketball player spinning a ball on the tip of a finger. If such a player performs 1.93…

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Q: A 1000 kg car has four 10 kg wheels.When the car is moving, what fraction of its total kinetic…

A: The required ratio is,

Q: A solid disk of mass 9.3 kg and radius 0.23m is rotating with angular speed 32 rad/s. A thin…

A: Given, Mass of disk md = 9.3 Kg Radius rd = 0.23 m Angular speed = 32 rad/s Mass of thin rectangular…

Q: A flywheel is a disk that is 0.3 m in radius and has a mass of 15kg. Mechanical energy can be stored…

A: The objective of the question is to find the angular speed required to spin the flywheel in order to…

Q: The puck in the figure below has a mass of 0.224 kg. Its original distance from the center of…

A:

Q: A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its…

A: Given, Rotational kinetic energy E = 3.40  x  109 J Mass of flywheel m  = 32.4  Kg Radius of fly…

Q: A uniform disk of mass 5.20 kg has a radius of 0.150 m and spins with a frequency of 0.650 rev/s.…

A:

Q: A solid disk rotates in the horizontal plane at an angular velocity of 0.050 rad/s with respect to…

A:

Q: A hollow spherical shell has mass 8.35 kg and radius 0.215 m. It is initially at rest and then…

A: Given data: Mass of the spherical shell m =8.35 kg Radius of the shell r =0.215 m Constant…

Q: The figure shows a rigid assembly of a thin hoop (of mass m = 0.30 kg and radius R = 0.17 m) and a…

A:

Q: While spinning down from 500.0 rpm to rest, a solid uniform disk does 51 KJ of work. If the radius…

A: Given,  Flywheel spinning down from N = 500 rpm. Kinetic energy = 51 kJ Radius = 400mm We need to…

Q: Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in…

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Q: A thin uniform-density rod whose mass is 3.6 kg and whose length is 2.5 m rotates around an axis…

A: Given, Mass of the rod, m=3.6 kg, Length, L= 2.5 m, and angular speed, ω=30 m/s, center's speed, v=…

Q: A light rod of length ℓ = 1.00 m rotates about an axis perpendicular to its length and passing…

A: Length of rod is L=1.00 m          so r=l2=1.002=0.5 m Mass of first particle is m1=4.40 kg Mass…

Q: A rod of mass m and length L is hinged with a frictionless hinge at one end. The moment of inertia…

A: Given,  Length of rod = L Mass of rod = m  Mass of ball attached to the end = 2m

Q: A large door is a uniform rectangle, with height h and width w and mass m, which is free to rotate…

A:

Q: A hollow ball has a radius of 2.47cm and a mass of 7kg and is rolling, it is traveling with a…

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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.