3.40 m long , 635 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 87 kg construction worker stands at the far end of the beam. What is the magnitude of the torque (in N m) about the point where the beam is bolted in place? Assume that the local acceleration due to gravity is -9.80 m/s2.

Q: A thin rod of length 1.50 m and mass 0.200 kg is to be rotated about an axis through its center of…

A: Given,Length of the rod, L = 1.50 mmass of the rod, m = 0.200 kgstarting from rest, ωi = 0…

Q: A spinning fan has a moment of inertia I = 0.16 kgm2. It is spinning with a constant rate of 59.7…

A: Given: moment of inertia, I = 0.16 kg m2  angular velocity initial, wo = 59.7 rad/s  time, t = 6 s…

Q: A coin with a diameter of 1.32 cm is dropped on its edge onto a horizontal surface. It starts…

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Q: An electric drill starts from rest and undergoes uniform angular acceleration for a period of 0.180…

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Q: One end of a meter stick is pinned to a table, so the stick can rotate freely in a plane parallel to…

A:

Q: A 13.0-m length of hose is wound around a reel, which is initially at rest. The moment of inertia of…

A: length of hose = 13 m moment of inertia = 0.56 kg m2radius = 0.16 m torque = 3.2 N.m Tension = 25 N…

Q: A uniform solid sphere of radius 2.0 m and mass 10.0 kg is free to rotate about an axis through its…

A:

Q: A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually…

A: α ( angular acceleration) = -0.180 rad/sec2Number of revolution (N) = 2870 Angular displacement (θ)…

Q: A deep-sea fisherman hooks a big fish that swims away from the boat, pulling the fishing line from…

A: Given data as per question  t    =   2s angular acceleration  =  110rad/s2

Q: The blades of a aircraft turbine spin with an angular velocity of 500 rad/s. The turbine begins to…

A: Answer           (A) 326 rad/sec Solution We know that For rotation motion kinematics equation ω2 =…

Q: A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above…

A: Write the given values with suitable variables. α=37.5 rad/s2I=0.75 kg.m2r=1.8 cm=0.018 m Here, α,…

Q: A circular disk with a radius of 0.43 m is subject to 2 tangentially applied forces. The disc is…

A:

Q: An old grindstone, used for sharpening tools, is a solid cylindrical wheel that can rotate about its…

A: Given data: Force, F = 300 N Angular acceleration, α = 0.868 rads2 Radius of wheel , r = 0.33 m…

Q: wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually…

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Q: A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually…

A:

Q: spherical shell with a mass of 1.76 kg and a radius of 0.37 m is rolling acro vel ground with an…

A:

Q: The distance from the angler's hand to the tip of the pole is  L = 2.15 m.  A fish is on the line,…

A: The relation between torque exerted by the fish and the force applied by the fish is given by,…

Q: A 400 kg solid metal disk (with uniform density) has several forces applied to it, as shown. If the…

A: Net torque acting on the solid metal disk is τnet=r1F1+r2F2-r3F3=0.5 m×18 N+1.0 m×15 N-0.5 m×20 N=14…

Q: The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 38 Nm.…

A: Given:ζ=38Nmr=25cm or 0.25mϕ=120°.

Q: A circular disk with a radius of 0.52 m is subject to 2 tangentially applied forces. The disc is…

A:

Q: 18 N 0.3 m 12 N 1.0 m 0.5 m 16 N A 367 kg solid disk (with uniform density) is shown. Its rotation…

A:

Q: A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually…

A:

Q: A child of mass 32.6 kg rides a broken 13.0-kg merry-go-round in the shape of a hoop of radius 4.12…

A:

Q: 0.74-mm-diameter solid sphere can be rotated about an axis through its center by a torque of 10.8…

A:

Q: A motor spins a disk (Idisk = 25.5 kg*m2) with a torque of 39 N*m, and a 18 N frictional force acts…

A: Given,Idisk = 25.5Kg.m2Torque = T = 39NmFrictional force F = 18Nradius of disk r = 1.4mattached disk…

Q: A circular disk with a radius of 0.36 m is subject to 2 tangentially applied forces. The disc is…

A:

Q: kinetic energy a

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Q: A cylinder 30.0 cm in diameter is at rest initially. It is then given an angular acceleration of…

A:

Q: A hollow, thin-walled sphere of mass 12.0 kg and diameter 48.0 cm is rotating about an axle through…

A: mass of hollow thin sphere = 12 kg diameter = 48 cm radius = 24 cm radius = 0.24 m The angular…

Q: During the launch from a board, a diver's angular speed about her center of mass changes from zero…

A: Given data: ωi=0ωf=6.9 rad/sTimr (t) = 310 msI=12 kg.m2 Need to determine the magnitude of the…

Q: An old grindstone, used for sharpening tools, is a solid cylindrical wheel that can rotate about its…

A: Given Data:- Radius of the wheel is r=0.330 m Magnitude of the tangential force is F=300 N Angular…

Q: A 9.75 m ladder with a mass of 21.7 kg lies flat on the ground. A painter grabs the top end of the…

A: Write the given values with the suitable variables. l=9.75 mm=21.7 kgP=245 Nα=1.8 rad/s2 Here, l, m,…

Q: The 22-cm-diameter disk pictured can rotate on an axle through its center. What is the net torque…

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Q: A CD has a diameter of 12.0 cm. If the CD starts from rest and has a constant angular acceleration…

A:

Q: A deep-sea fisherman hooks a big fish that swims away from the boat, pulling the fishing line from…

A: Given : Initial velocity, ωo=0 Radius from axis of rotation, r = 4.50 cm = 0.045 m Angular…

Q: A 0.74-mm-diameter solid sphere can be rotated about an axis through its center by a torque of 10.8…

A: Given that,A solid sphereDiameter, d=0.74 mm=0.74×10-3 mTorque,τ=10.8 N.mω= 150 revolution/14…

Q: A platform is rotating with an angular speed of 3.00 rad/s and an angular acceleration of 11.0…

A:

Q: Two uniform circular disks of moment of inertia I = 3.0 × 10-3 kg · m2 about its center of mass and…

A: Given:   w=6NI=3.0×10w=6-3  kg-mrR=0.25mg=9.8 m/sr

Q: One end of a meter stick is pinned to a table, so the stick can rotate freely in a plane parallel to…

A:

Q: A dentist's drill starts from rest. After 4.30 s of constant angular acceleration it turns at a rate…

A: Given data The initial angular velocity of the ωo=0 rad/s The time is t=4.30 s The final angular…

Q: An object has a moment of inertia of 10.82 k g ⋅ m 2, and a torque of 19.1 N ⋅ m is applied on it.…

A:

Q: A 0.71-m-diameter solid sphere can be rotated about an axis through its center by a torque of 12.8…

A: Diameter of sphere is Torque is Initially it is at rest so initial angular velocity is Number of…

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.