An individual is wondering how much force their biceps produce holding a weight at 60 degrees (this means we will use the T=rEsine equation). The individual's biceps insertion is 4cm from their elbow. Their forearm is 29cm long, weighs 1.87kg, and has a center of gravity 14.5cm from the elbow. They are holding a 30kg weight. euided

Q: A construction crew would like to support a 1000 kg steel beam with two angled ropes as shown. Their…

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Q: A 75-kg man stands on his toes by exerting an upward force through the Achilles tendon, as shown.…

A: According to the first condition of equilibrium, net force on system is zero and also with the…

Q: The upper leg muscle (quadriceps) exerts a force of 1200 N, which is carried by a tendon over the…

A: Using the free body diagram, the net forces acting along the horizontal and the vertical direction…

Q: An individual leans forwards to pick up a box of 100 N. The weight of his upper body has a magnitude…

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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: (LO2-4) If b = 1 (i.e. the anchor side of the cable is at a 45° angle), what should be the slope a…

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Q: The left end of a spring is attached to a wall. When Bob pulls on the right end with a 200N force,…

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Q: A man stands on his toes by exerting an upward force through the Achilles tendon, as in the figure.…

A: Calculate the weight of the man. w = mg     = 80*9.81    = 784.8 N The normal reaction becomes, N =…

Q: Suppose the humerus is reduced uniformly in size by a factor of two. This means that both the length…

A: Here, the amount of the stretch is inferred as the amount of the stress developed in the humerus for…

Q: There is a small but appreciable amount of elastic hysteresis in the large tendon at the back of a…

A: The elastic hysteresis is behavior of an elastic material while regaining its shape when the…

Q: am is hinged at a wall and loaded as shown. What is the tension in the cable?

A: Ans : 500kN

Q: African elephants are the largest land animals. They consume approximately 10% of their body weight…

A: For equilibrium Net torque and net force about center of rotation must be zero. So first we will…

Q: The plank is a great way to strengthen abdominal, back, and shoulder muscles. You can also use this…

A: Given: One athlete measured this weight 66.0% was supported by his forearms and by his toes is 34.0%…

Q: Why must you bend forward when carrying a heavy load on your back?

A: The formula for the torque is: As a person carries a heavy load on his back and he doesn’t bend…

Q: Why must you bend forward while carrying a heavy load on your back?

A: It is very much advisable to bend forward while carrying a heavy load.

Q: The arm shown in the figure supports a 4kg sphere. The mass of the hand and forearm together is 3kg…

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Q: Why Does A Cyclist Lean To One Side, While Going Along A Curve? In What Direction Does He Lean?

A: The cyclist bends slightly inwards while going on a curved road because by doing that the cyclist is…

Q: A cook holds a 1.30 kg carton of milk at arm's length. What force Fa must be exerted by the biceps…

A: First, we see the diagram and understand the problem. So, For rotational equilibrium, we have to…

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

A: Leaning forward

Q: When you carry a heavy load with one arm, why do you tend to hold your free arm away from your body?

A: - to shift the Centre of gravity of body away from load

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.

Q: hlete strengthens her leg and knee by doing "leg curls." While sitting on a bench with the leg…

A: Given W= 225 N, D = 44 cm=0.44 md = 5.5 cm=0.055 m

Q: When throwing a football you are always instructed to follow-through. What is the advantage of…

A: The football has its unique shape. It has special instructions for holding for better grip, throwing…

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: To pull with a force F=160 N on the scale as shown, what should the tension in your biceps muscle…

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Q: Hold your upper arm vertical and your lower arm horizontal with your hand palm-down on a table, as…

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Q: Consider the person lifting a heavy box with his back, shown in Figure,The mass of the upper body is…

A:

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.