TABLE 7-1 Center of Mass of Parts of Typical Human Body, given as % (full height and mass = 100 units) Distance of Hinge Points from Floor (%) Hinge Points (•) (Joints) Center of Mass (x) (% Height Above Floor) Percent Mass 91.2% 81.2% Base of skull on spine elbow 62.2%* wrist 46.2%* Head Trunk and neck 93.5% 71.1% 71.7% 6.9% 46.1% 6.6% Shoulder joint Upper arms Lower arms 55.3% 4.2% 52.1% Hip joint Hands 43.1% 1.7% Upper legs (thighs) 42.5% 21.5% 28.5% Knee joint Lower legs 18.2% 9.6% 4.0% Ankle joint 1.8% 3.4% Feet Body см 3D 58.0% 100.0% * For arm hanging vertically.

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A: Given that: Weight of B: W=46 NCoefficient of static friction, μs=0.20 To determine the smallest…

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Q: A (cord tensions) Ста 40° B (no friction MK = 0.35 мк с = 4 lb W₁ = 4 16 B W = 16 16 Three blocks…

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Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest.