When you hold an ball by only your forearm, the main lifting muscle in your arm is the biceps. Suppose the mass of a forearm with hand is 1.80 kg. The biceps is connected to the forearm a distance of 2.50 cm from the elbow, and it holds a 44.5 N (about 10 lbs) ball at the end of the forearm at distance of 35.0 cm from the elbow. What is the magnitude of the torque about the elbow by the ball, in N·m? Use g = 10.0 m/s2.

Q: A particle rotates with constant speed in a circle. Let t be the net torque on the particle and F…

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Q: When opening a door, you push on it perpendicularly with a force of 57.5 N at a distance of 0.75 m…

A: Given data:  Force (F) = 57.5 N Distance (r) = 0.75 m Angle (θ) = 90°, Perpendicular Required:…

Q: A diagram of a hypothetical 40 cm long arm is shown. For the purposes of answering this question,…

A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…

Q: In the figure, a square piece of wood is pivoted at its center. Each of the forces A, B, C, and D…

A: We note the following lengths

Q: A student holds a bike wheel and starts it spinning with an initial angular speed of 7.0 rotations…

A: Given data: The initial angular speed is ni=7.0 rotation per second. The time taken is t=10.0 s.…

Q: Two men are raising a beam as shown. The magnitude of the tension in the right cord is 1000 N, the…

A: The force is orthogonal to the radius, thus the force will be in counter clockwise direction.Write…

Q: A man ties one end of a strong rope 8.06m long to the bumper of his ruck, 0.602 m from the ground,…

A: Torque is a measure of how much a force acting on an object causes that object to rotate.  Here, we…

Q: playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an…

A:

Q: A torque of magnitude 50Nm acts for 10 seconds to start a small merry-go-round (I = 1/2*m*r^2 ) of…

A: Given data:  Torque (τ) = 50 Nm Time (t) = 10 seconds Moment of inertia (I) = (1/2)mr2 Radius (r) =…

Q: F3 F1 F2

A: Given, Radius, r=0.53m F1=14.7N F2=11.1N F3=11.5N Net torque is given by, τnet=∑r×F

Q: A square plastic disk is placed on a turn table to be rotated around an axis that goes through its…

A: Side of the disk r = 0.56 m Force applied at one corner of disk F = 24.4 N Torque τ = ? Formula…

Q: To develop muscle tone, a woman lifts a 3.30 kg mass held in her hand. She uses her biceps muscle to…

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Q: F = (2i – 33 + 4k)N 2. What is the torque of the force acting at the point 7 = (3i + 23 + 3k) m %3D…

A: We have a force F→=2i^-3j^+4k^ (N) acting at the point r→=3i^+2j^+3k^ (m). We need to find the…

Q: A force F =7.2î +2.3k N is applied at the point (3,0,1) m. What is the y component of the torque?

A: To answer the question we will use the formula: Τ→=r→×F→

Q: If you are looking at the face of a standard analog wall clock (or wrist watch), when the second…

A: According to the convention, any clock that produces anticlockwise rotating moment is positive and…

Q: A force F =7.4i +2.7k N is applied at the point (3,0,1) m. What is the y component of the torque?

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Q: If you hold your arm outstretched with your palm upward, the force to keep your arm from falling…

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Q: If you hold your arm outstretched with your palm upward, the force to keep your arm from falling…

A: The torque is given the formula:Given:Mass of the arm () = 4.25 kgAcceleration due to gravity () =…

Q: The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 36 NmNm…

A: The net force acting on an object is the product of the mass and the acceleration of the system. If…

Q: The distance from the center of the breastbone to a man’s hand, with the arm outstretched and…

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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: On a playground, there is a merry‑go‑round. In order to get it moving, Bonnie applies a force of 15…

A: Applied force (F) = 15 N distance (d) = 5.9 m from the axis of rotation to the edge θ = 90o

Q: A square plastic disk is placed on a turn table to be rotated around an axis that goes through its…

A: solution is given as

Q: A force given by F1 = (100N, -20 deg) is applied to the right end of a 6 meter long rod aligned…

A: Given:  F1 = 100 N, -20 degree at 6 m  F2 = 200 N , 120 degree at 1 m  F3 = 220 N , 110 degree at 3…

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 doctor opens a 1.5 m door by pushing it with a force of 39.7 N. What magnitude torque does she…

A: Given values:Applied force, F = 39.7 NDistance from the axis to the center of the door, r = 1.5 / 2…

Q: In the figure, block 1 has mass m1 = 0.460 kg, block 2 has mass m2 = 0.500 kg, and the pulley, which…

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Q: Force F= (-7.5 N )i + (4.8 N) acts on a particle with position vector = (2.1 m )i + (3.3 m ) 7. What…

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Q: A man ties one end of a strong rope 9.00 m long to the bumper of his truck, 0.588 m from the ground,…

A:

Q: Two wheels have the same mass and radius of 4.6 kg and 0.51 m, respectively. One has the shape of a…

A: Given data, Mass of the each wheel = 4.6 kg radius of the each wheel = 0.51 m angular displacement…

Q: enti

A: GivenF=5 Nr=36 cm=0.36 mWheel starting from restωo=0θ=10 rev=10×2π radt=4 s

Q: A meter stick has a pivot placed ate 30 cm.  The following masses are placed at the following…

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Q: A disc with a radius of 0.53 m is fixed to rotate about its center. Three forces act on the object…

A: Given: The force F1 is 14.7 N. The force F2 is 11.1 N. The force F3 is 11.5 N. The angle is 34.3…

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: . Archeologists in Egypt are attempting to open a 2.57-m-wide door in the tomb of Tutankhamen.…

A: Torque is the measure of force that is required to rotate an object about an axis. In linear…

Q: 20. The 57.2cm diameter disk rotates counterclockwise on an axle through its center. F1=42.6N,…

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Q: What is the magnitude of the torque about the origin? b) What is the magnitude of the torque about…

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Q: I am sitting on a seesaw opposite my young nephew.  The seesaw is 17.8 feet long and has a pivot in…

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Q: The distance from the fisherman's hand to the tip of the rod is  L = 1.94 m.  A fish is on the…

A: Draw the schematic arrangement of the system as shown below:

Q: I am sitting on a seesaw opposite my young nephew. The seesaw is 14.5 feet long and has a pivot in…

A: Given data:  Length of seesaw (L) = 14.5 feet F1 = 106.4 lbs and F2 = 34.5 lbs Required: The…

Q: o a light beam (of negligible mass), two antiparallel forces are applied, as shown in the figure.…

A: The distance "l" that separates both forces.given,Distance from F2 to point O.F1= 9.8 N F2= 5.7…

Q: If you hold your arm outstretched with your palm upward, the force to keep your arm from falling…

A:

Q: The wheel and axle have forces applies tangentially as shown in the figure. There is also a…

A: Torque is given by The magnitude of the torque on an object is given by Where r = distance from…

Q: The figure below is for a 50 kg-m² object. o(rad/s) 60.0 40.0 20.0 -20.0 2.0 4.0 t(s) Find the net…

A: Given data: The inertia of object is I=50 kg·m2.

Q: The blades of a medium size wind turbine rotate at a maximum rate of 20.6 rev/min. The total moment…

A: The final angular speed, ωf=20.6 rev/min. The initial angular speed, ωi=0. The total moment 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.