Triceps 30 cm 2.4 cm FIGURE P8.47

Q: A man holds a 157-N ball in his hand, with the forearm horizontal (see the figure). He can support…

A:

Q: A uniform, 100-N pipe is used as a lever as shown in the figure. Where must the fulcrum (the support…

A: The reaction force is the result of action force and is directly opposite to action force. Weight of…

Q: A uniform plank is supported by two equal 120-N forces at X and Y, as shown. The support at X is…

A: AnswerGiven that, A uniform plank is supported by two equal 120N  forces at…

Q: The center of gravity of a 50g meter stick is at 51 cm and the stick is supported at 70 cm.  Where…

A: Given data:    Mass of meter stick (m) = 50 g = 0.050 kg Mass of object (mb) = 80 g = 0.080 kg…

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

A:

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

A: Draw a free-body diagram of the fore-arm.

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

A:

Q: В A cook holds a 1.72-kg carton of milk at arm's length (see the figure below). What force Fa must…

A: Consider a carton of milk of mass m(1.72 kg) and it is placed at the distance l from the joint(axis…

Q: Three children are trying to balance on a seesaw, which includes a fulcrum rock acting as a pivot at…

A: The weight of Child A,

Q: A man holds a 169-N ball in his hand, with the forearm horizontal (see the figure). He can support…

A:

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

A: GivenF=12 lbs

Q: Milk 75.0° B. -25.0 cm- 8.00 cm

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Q: A standard four-drawer filing cabinet is 52 inches high and 15 inches wide. If it is evenly loaded,…

A: Here a vertical line passing through center of gravity. This center of gravity crosses the vertical…

Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A:

Q: A weightlifter is holding a 50.0-lb weight (equivalent to 222.4 N) with his forearm, as shown in…

A: Note: figure is not attached to the question      so, forearm length was assumed to be…

Q: A man holds a 180-N ball in his hand, with the forearm horizontal (see the figure). He can support…

A: Write down the given values using a suitable variable. Here Wb signifies ball weight, and Wa…

Q: A 60kg student stands on a very light rigid board that rests on a bathroom scale at each end as…

A: Given data: Mass of the student is, m = 60 kg Length of the board is, L= 2 m Position of the student…

Q: A person working at a drafting board may hold her head as shown in Figure shown, requiring muscle…

A: Let Fm=force by upper vertebrae W=weight Therefore the force in z direction will be,

Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A:

Q: If you hold your arm outstretched with your palm upward, the force to keep your arm from falling…

A:

Q: A beam of negligible mass supported by a hinge, holds two balls as shown. Considering that the…

A: To get the value of x we apply rotational equilibrium about the point O And the only forces acting…

Q: Assume a person bends forward to lift a load “with his back” as shown. The spine pivots mainly at…

A:

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

A:

Q: A man holds a 161-N ball in his hand, with the forearm horizontal (see the figure). He can support…

A:

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

A:

Q: Even when the head is held erect, as in Figure shown, its center of mass is not directly over the…

A: Given: W = 50 N In the given figure, take anti-clockwise torque as positive and clockwise torque as…

Q: A meter stick weighing 20 N is balanced off its center by 30 cm using a counter weight attached at…

A: Given data: Weight of meter stick (W0) = 20 N Distance of weight of the meter stick from pivot (r0)…

Q: If you are trying to balance a seesaw and you have a higher mass on the left, should the mass on the…

A: Introduction: Seesaw is a children swing found in children parks where two child sit on one-one ends…

Q: A weightlifter is holding a 50.0-lb weight (equivalent to 222.4 N) with his forearm, as shown in…

A: forearm length is d=13inch = 33cm and the bicep is attached b= 1.5 = 3.81cm from the elbow joint.…

Q: ould therefore exert a force to keep the head erect. That is why your head falls forward when you…

A: Solution: Given that  w = 55 N, r1 = 4.8 cm, and r2 = 2.9 cm.) magnitude N direction (upward,…

Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A:

Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A:

Q: What is the lever arm of bicep's tension? 4cm 17.5cm 35cm How much force is supported by the bicep's…

A: The lever arm on the bicep tension is the distance from point of rotation. And the force applied by…

Q: The biceps muscle exerts a vertical force on the lower arm of 1000 N to lift an object. Assuming the…

A: The force exerted by the biceps muscle on the lower arm, F = 1000 N The perpendicular length of the…

Q: A uniform beam of length L and mass mB is supported by two pillars located L/3 from either end, as…

A: In this question we are given that a uniform beam of length L and mass mB is supported by two…

Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A: The joint at the elbow has a turning effect when mass is placed at the hand. The biceps muscle…

Q: A man holds a 153-N ball in his hand, with the forearm horizontal (see the figure). He can support…

A: Given data: Weight of the ball, W=153 N Forearm weight, W'=18.6 N

Q: The biceps muscle exerts a vertical force of 7090 N on the lower arm. Calculate (a.) The torque…

A: Given : F = 7090 N r = 5.0 cm = 0.05 m

Q: . Give two everyday examples of objects that are not in static equilibrium.

A: An object said to in equilibrium when all the forces acting on it are balanced. The balanced force…

Q: In exercise physiology studies, it is sometimes important to determine the location of a person's…

A: Fg1=380 NFg2=260 NDistance between scales=2 mW=Total weight

Q: In exercise physiology studies, it is sometimes important to determine the location of a person's…

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Q: A long uniform beam and a load at one end as shown in Figure 3. The beam is hinged fix to a wall and…

A:

Q: A man holds a 195-N ball in his hand, with the forearm horizontal (see the figure). He can support…

A: Given: Weight of ball, Wb = 195 N Weight of forearm, Wf = 20.7 N distance between elbow joint and…

Q: The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle…

A: The given figure is: Concept:

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

A:

Q: A schoolyard teeter-totter with a total length of 6.1 m and a mass of 41 kg is pivoted at its…

A:

Q: As a swimmer pulls his arm through the water, various muscles exert forces on the upper arm. The…

A: Given data D=33cm = 0.33m d=7.30cm = 0.073m Fhand = 119 N

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.