(II) Two cords support a chandelier in the manner shownin Fig. 9–4 except that the upper cord makes an angle of45° with the ceiling. If the cords can sustain a force of1660 N without breaking, what is the maximum chandelierweight that can be supported?

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A: Write the expression for the strain and stress, respectively.

Q: (II) Figure 9–50 shows a pair of forceps used to hold a thin plastic rod firmly. If the thumb and…

A:

Q: (II) A  180km/h wind blowing over the flat roof of a house causes the roof to lift off the house. If…

A:

Q: (III) A door 2.30 m high and 1.30 m wide has a mass of 13.0 kg. A hinge 0.40 m from the top and…

A: It is given that,

Q: When you lift an object by moving only your forearm, the main lifting muscle in your arm is the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: When you lift an object by moving only your forearm, the main lifting muscle in your arm is the…

A:

Q: The mobile in Fig. 9–90 is in equilibrium. Object B has mass of 0.748 kg. Determine the masses of…

A: Condition for equilibrium for D and C

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A: Given The coefficient of static friction μs = 0.50

Q: (II) A 172-cm-tall person lies on a light (massless) board which is supported by two scales, one…

A: The expression for the Center of gravity CG is given by CG=W1d1+W2d2W1+W2 Where W1 and W2 are the…

Q: (II) Assume the supports of the uniform cantilever shown in Fig. 9–76 (m = 2900 kg) are made of…

A: Let W and g denote the cantilever’s weight (acting downwards at the cantilever’s center) and the…

Q: You must lean quite far forward as you rise from a chair (try it!). Explain why.

A: Leaning forward

Q: In a mountain-climbing technique called the "Tyrolean tra- verse," a rope is anchored on both ends…

A:

Q: A pair of wedges is used to lift a crate as shown in The crate weighs 4000 lb, the wedge angle e is…

A: Given that,Weight of the Crate w=4000 lbInclination of the angle, θ=18°Coefficient of friction at…

Q: model for the elbow joint models the bicep muscle connecting to the horizontal forearm by a vertical…

A: Here we will use the concept of moment of force or torque . Clockwise moment must be equal to…

Q: A uniform meter stick supported at the 25-cm mark is in equilibrium when a 1-kg rock is suspended at…

A: The weight of the meter stick acts downwards at its center of mass (50 cm), that is, 25 cm away from…

Q: A 1.2-m plank of mass 3 kg rests on two joists. Knowing that the coefficient of static friction…

A: Part-a The length of the plank l = 1.2 m. The mass of the plank m = 3 kg. The coefficient of static…

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.