A 3.71m long stick with a uniform mass distribution is supported 1.78m from the left end of it.  When I apply a 99.95N force to the right end at an angle of 4.6° to the stick, the stick will rest in the horizontal position.  What is the mass of the stick and the magnitude of the force exerted by the pivot on the stick?

Q: A 3 m long light (massless) board is supported at each end by cables. A painter weighing 900N stands…

A: We need to calculate tension in both the cables holding the light board.

Q: How far horizontally from that cable is the center of mass of the system

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Q: An adult horizontally pushes a doorknob with a force of magnitude 65 N. The doorknob is 90 cm away…

A: (a). When perpendicular to door  Torque = 58.5 N-m  (b). When 600  to face of door  Torque = 50.66…

Q: A spade is modelled as a uniform rod, of mass 2kg and length 90cm, attached to a uniform square…

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Q: A bridge of length 50.0 m and mass 8.00 × 104 kg is supported on a smooth pier at each end as shown.…

A:

Q: In the figure, a 60 kgkg man walks out on a 14 kgkg beam that rests on, but is not attached to, two…

A: Given :-  mass of man = 60 Kg mass of beam = 14 kg

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Q: Resting horizontally, a wheelbarrow has a total mass of 65 kg, with its center of gravity 12 cm from…

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Q: Masses m = 50, m2 in the figure. 15, m3 = 20, and m are positioned on a weightless beam, with the…

A:

Q: An 8.31-m, 267-N uniform ladder rests against a smooth (frictionless) wall. The coefficient of…

A: As per the given data, Length of the ladder (l) = 8.31 m; Weight of the ladder (W) = 267 N;…

Q: Abeam with a length of 3.50 m and a weight of 200 N is attached on one end to a vertical wall with a…

A: Given, Weight of beam, W=200N Length of a beam, L=3.5m Weight of the box, w=50N   Let the reactions…

Q: f mass M has an empty paint can of mass m hanging from one end. The meter stick and the can balance…

A: Given:-  The mass of the meter stick is M  The mass of the empty can is m hanging from one end.  The…

Q: A door has a width of 1 m and a mass of 12 kg. The hinge attaches the door on the left. This time,…

A:

Q: Two people, let’s call them person A and person B, carry a uniform board of length 6 meters and…

A: DataLength, L = 6mWeight, W = 150NDistance of A from end 1, a=1mDistance of B from end 2, b=2m…

Q: A beam is connected to the floor by a hinge. A rope is attached to the other end of the beam. The…

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Q: Two Boy Scouts, Bobby and Jimmy, are carrying a uniform wooden tent pole 4.20 m in length and having…

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Q: A scaffold of mass 50 kg and length 4.8 m is supported in a horizontal position by a vertical cable…

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Q: Exercise 8.3 Hints: Getting Started | I'm Stuck Suppose a 27.2 kg child sits 1.82 m to the left of…

A: Length of the see saw = L = 4.92m Mass of the first child = m1=27.2 kg Mass of the second child = m2…

Q: A beam of mass M and length L is hanging from a rope, perpendicular to a wall. The rope is attached…

A: The mass of the beam: M The length of the beam: L

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Q: 4.23m long stick with a uniform mass distribution is supproted 1.93m from the left end of it.  When…

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Q: A painter whose mass is 60.0 kg stands on a 20.0 kg uniform horizontal beam that is held in…

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Q: A heavy block of a mass of M = 71 kg is attached to the left end of a horizontal beam (beam's mass m…

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Q: Consider a rigid steel beam of length L = 11.5 m and mass mb = 405 kg resting on two supports, one…

A: Write the force balance equilibrium equation for the given system and substitute the known values.

Q: A 53.9 kg, 4.7 m uniform ladder leans against a frictionless wallA 81.9 kg person is standing on the…

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Q: A uniform rod of mass 500. g is used as a balance. We want to balance a 2.00-kg weight on the left…

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Q: A 10 kg weight is hanging from one end of a uniform rod of 11 m length. If the rod rests…

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Q: A sign for a pizza restaurant hangs from a 2.60-m long rod extended out from a building. A cable,…

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Q: Two individual apply force to opposite sides of a frictionless swinging door. If A applies a 30 N…

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Q: A uniform plank of length 5 m and weight 200 N rests horizontally on two supports with 1.1 m of the…

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Q: The figure below shows a beam of uniform density with a mass of 33.0 kg and a lengthl = 4.45 m. It…

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Q: A flagpole has a uniform mass density and total mass of M and length L. It is hinged at the ground…

A: Answer

Q: A horizontal beam of length 2 m and mass 8.0 kg has a mass of 5.0 kg and width 0.8 m sitting at the…

A: The data given in the system is, A. Beam a. Mass, mb=8 kg b. Length, l=2 m B. Block a. Mass of the…

Q: A board of mass 3.0Kg serves as a seesaw for two children. Child A has a mass of 40Kg and sits 2.5m…

A: mass of child A = 40 kg mass of child B = 25 kg distance of child A from pivot point = 2.5 mdistance…

Q: A sign for a pizza restaurant hangs from a 2.60-m long rod extended out from a building. A cable,…

A: Given, Length of the rod=2.6 m mass of the signal board=9.4 kg The angle between the building and…

Q: A person exerts a horizontal force of 42 N on the end of a door 96 cm wide. What is the magnitude of…

A: Given, force , F = 42 N width of door, d = 96cm = 0.96m Magnitude of torque = Force×distance×sinθ…

Q: A see-saw consists of a uniform board with mass 43.6kg and length l = 2.01m. It supports two friends…

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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.