A gymnast (240 lbs) is hanging between two rings. His two arms make an 80° angle with his body. What load (in pounds) does he feel in each arm? Repeat with an 85° angle with his body. What would eventually happen if he tried to have his arms parallel to the ground (or as the angle approaches 90°)?

Q: A 35 N forearm (we are ignoring the hand for this problem) are held at a 45 deg angle to the…

A: Given data- A 35 N forearm are held at a 45 deg angle to the vertically oriented humerus. The COM of…

Q: uppose such a cable is strung between poles spaced 500 meters apart across a rural landscape.  The…

A:

Q: End A of a slender, uniform rod of length L and weight W bears on a surface as shown, while end B is…

A: Given

Q: 27. Find the direction of the force acting on the pin, o = ?

A: Given data,

Q: End A of a bar AB rests on a frictionless horizontal surface and end B is hinged. A horizontal force…

A: Solution:-

Q: ver of mass 64.7 kg stands on one end of a diving board of mass 34.2 kg, as shown in the diagram.…

A: GivenMass of diver, mD=64.7 kgMass of diving board , mB=34.2 kg

Q: The beam has multiple distributed loads acting on it. What is the magnitude of the reaction at…

A: For the given system,

Q: Create a simple balance using a ruler as the balance beam and a pencil as the fulcrum. Put 2 nickels…

A:

Q: Create a simple balance using a ruler as the balance beam and a pencil as the fulcrum. Put 2 nickels…

A: Answer :-  Yes , it is necessary because ( mass × distance from fulcrum) must be constant

Q: 17. An 100 kg block dangles from the knot formed by 2 strings suspended from the ceiling at angle of…

A:

Q: Why is it important to secure file cabinets to the floor, especially cabinets with heavy loads in…

A: It is dangerous to pull open the upper drawers of a fully-loaded file cabinet that is not secured to…

Q: On the way to Hilton Head, S.C. for Spring Break, your car breaks down in the middle of nowhere. A…

A:

Q: (-2, 0, -2) m (-3, 0. 3) m D& B (4. 0, 1) m A (0, -4, 0) m 50 kg

A: Given, Mass of the cylinder, m = 50 kgcoordinate of the points,A(0, -4, 0) mB(4, 0, 1) mC(-2, 0, -2)…

Q: What will happen when the supports are removed from this system? kg kg 1.75 1.5 1.25 1 0.75 0.5…

A:

Q: A rod AB weighing 25 kN is supported by a pin at A and a cable BD. The center of gravity of the rod…

A:

Q: A 75.0 kg passenger on a cruise ship leans forward into a strong horizontal headwind. When her…

A:

Q: A death-defying rock climber is scaling a perfectly vertical section of a mountain wall. She used…

A:

Q: Determine the magnitude P of the vertical force required to lift the wheelbarrow free of the ground…

A: Balance torque about point O would give us the value of P required to lift the cart from point B

Q: arm bone- -Flexor muscle M Elbow joint cg 0.0510 m+ 0.0890 m -0.330 m-

A: Torque on a body is given by the cross product of force acting on it and the distance between the…

Q: A man holds a 183-N ball in his hand, with the forearm horizontal (see the figure). He can support…

A:

Q: A wooden board of mass M and length L is hung from the 4. ceiling by two massless wires attached to…

A: Given :     Mass of the wooden board = M = 10 kg     Length of the wooden board = L      Mass of the…

Q: 1. The picture shows a heavy ball held in the palm of a hand. The mass of the ball M is 7.5 kg. The…

A:

Q: A man holds a 186-N ball in his hand, with the forearm horizontal (see the figure). He can support…

A: Weight of ball, Weight of forearm,

Q: A 65 kg person is standing on a 25 kg wood board as shown. How far can they go past the left support…

A: Mass of board = 25kgMass of person = 65kgLength of board = 5.5m

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.