If you are holding a 25lb weight in your hand 30cm from your elbow joint and your biceps brachii is generating a 30lb upward force at its attachment 5cm from the axis at 30° of elbow flexion, what will happen to the weight?

Q: Assuming a single muscle group (biceps) is responsible for carrying a ball with a weight of 5 kg as…

A:

Q: (24) Assuming the lower arm has a mass of 2.8 kg and its CG is 12 cm from the elbow- joint pivot,…

A: Given, mass of the shot put, m = 7.5 kgmass of the lower arm, M = 2.8 kgcenter of gravity of lower…

Q: Calculate the back extensor force (Fm) required to keep the trunk in the static position as shown.…

A: The objective of the question is to calculate the back extensor force (Fm) required to keep the…

Q: (a) Find the tension in the strap.  N (b) Find the components of the reaction force exerted by the…

A:

Q: (6) Explain why forces in muscles and joints are largest when their load is a long distance from the…

A: Explain why forces in muscle is largest when the load is long distance.

Q: A wrought iron wedge 2 cm long and 9 mm wide is used to attach a pulley to a shaft held still. The…

A: The given conditions for the problem are: A wrought iron wedge 2 cm long and 9 mm wide is used to…

Q: A uniform rod of length L and mass m has forces applied as shown below. Which one of the following…

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Q: We analyzed the biceps muscle example with the angle between forearm and upper arm set at 90 degree…

A: Here, we are required to consider the angle between the forearm and upper arm as 100 degrees. Given:…

Q: a)Calculate the bone shear force acting on the lumbar vertebra. Report the force in units of N…

A: The objective of the question is to calculate the bone shear force, bone compressive force, and back…

Q: Below are two conditions: a) a weighted held in the hand at 90°, and b) a cuff-weight wrapped around…

A:

Q: An aluminum cylinder with a radius of 2.5 cm and a heightof 82 cm is used as one leg of a workbench.…

A: Given,radius r= 2.5cmheight h=82cmforce F=3.2×104N

Q: If the curvature of this pole is measured, can the bending stress developed within it be determined?…

A: To determine: The bending stress can be determined, if the curvature of the pole is measured.

Q: metal rod of mass M = 6 kg and length L = 0.5 m, is attached at one end by a hinge to a vertical…

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Q: Find the force exerted by the biceps muscle in holding a 1.00-L milk carton (weight 9.90 N) with the…

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Q: An object is said to be in static equilibrium if the sum of the forces acting on an object is zero.…

A: Express vectors SP, SQ, and SR in vector form as follows:

Q: AN Review I Constants Consider a human arm shown in the (Figure 1). The maximum weight that can be…

A: Given, For Figure 1 the free body diagram is as follows

Q: A uniform rod AB of weight 500 N and length 4.0 m is supported at two points P and Q as shown below.…

A: Weight of rod, w, AB=500 N Length of the rod, AB= 4 m AP=QB=0.8 m Weight of man, wm=800 N

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

A: Leaning forward

Q: The force-torque system acting on O is equivalent to the key acting on A. If R = 600i + 1400j + 700k…

A:

Q: We analyzed the biceps muscle example with the angle between forearm and upper arm set at 90 degree…

A: r_1 = 5.0 cm, r_2 = 12 cm, r_3 = 30 cm, m_a = 2.4kg, mb = 4.2 kg.

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).