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Part A Hold your upper arm vertical and your lower arm horizontal with your hand palm-down...
Hold your upper arm vertical and your lower arm horizontal with your hand palm-down on a...
Hold your upper arm vertical and your lower arm horizontal with
your hand palm-down on a table, as shown in the figure. If you now
push down on the table, youll feel that your triceps muscle has
contracted and is trying to pivot your lower arm about the elbow
joint. If a person with the arm dimensions shown pushes down hard
with a 90 N force (about 20 lbs), what force must the triceps
muscle provide? You can ignore the...
Hold your upper arm vertical and your lower arm horizontal with your hand palm-down on a table, as shown in the figur...
Hold your upper arm vertical and your lower arm horizontal with
your hand palm-down on a table, as shown in the figure. If you now
push down on the table, youll feel that your triceps muscle has
contracted and is trying to pivot your lower arm about the elbow
joint. If a person with the arm dimensions shown pushes down hard
with a 90 N force (about 20 lbs), what force must the triceps
muscle provide? You can ignore the...
A standard man holds the upper arm vertical and the lower arm horizontal with an object...
A standard man holds the upper arm vertical and the lower arm horizontal with an object of mass M = 5 kg resting on the hand, as illustrated in the figure. The mass of the lower arm and hand is one-half the mass of the entire arm. As shown in the figure, there are four forces acting on the lower arm: the force Fexerted by the bones and ligaments of the upper arm at the elbow (fulcrum), the tension T...
To determine the force a person's triceps muscle can exert, a doctor uses the procedure shown...
To determine the force a person's triceps muscle can exert, a
doctor uses the procedure shown in the figure(Figure 1), where the
patient pushes down with the palm of his hand on a force meter.
Given that the weight of the lower arm is Mg = 15.5 N , and that
the force meter reads F = 90.0 N , what is the force FT exerted
vertically upward by the triceps?
Humerus Triceps Axis Radius Ulna FI Force meter 2.78...
A load of 10 kg is held in one hand, with the lower arm horizontal. The...
A load of 10 kg is held in one hand, with the lower arm horizontal. The lower arm has mass 1.5 kg The distance from the elbow to the hand is 30 cm and the COM can be assumed to be 40% of this distance (from E to H). a) What is the external static elbow moment? (31.2 Nm) b) If the biceps muscle acts with a perpendicular moment arm of 5cm, what force must it generate in order to...
A person with their upper arm vertical and their forearm horizontal holds a 4.5-kg iron cannon...
A person with their upper arm vertical and their forearm horizontal holds a 4.5-kg iron cannon ball as shown in the figure below. Assume the mass of the forearm and hand is 1.5 kg, with a center of mass 15 cm from the elbow. The center of the cannonball is 32 cm from the elbow, and the force of the biceps is applied 5.0 cm from the elbow. What force is exerted by the bicep? Elbow contact point 4.5 kg...
FIGURE 12-7 2.5 cm 30.0 cm Elbow joint 21) Assuming the lower arm has a mass...
FIGURE 12-7 2.5 cm 30.0 cm Elbow joint 21) Assuming the lower arm has a mass of 2.8 kg and its CG is 12 cm from the elbow-joint pivot,21 how much force must the extensor muscle in the upper arm exert on the lower arm to hold a 7.5 kg shot put (Fig. 12-7)? E) 1000 N D) 100 N C) 500 N B) 1500 N A) 750 N .80
Part A A 75.0 kg weight lifter is doing arm raises using a 7.50 kg weight...
Part A A 75.0 kg weight lifter is doing arm raises using a 7.50 kg weight in her hand. Her arm pivots around the elbow joint, starting 40.0° below the horizontal (See the figure(Figure 1).) Biometric measurements have shown that both forearms and the hands together account for 5.75 % of a person's weight. Since the upper arm is held vertically, the biceps muscle always acts vertically and is attached to the bones of the forearm 5.50 cm from the...
QUESTION 1 A wrench is used to loosen a nut as shown below by applying a...
QUESTION 1 A wrench is used to loosen a nut as shown below by applying a force 13 N. Determine the torque (magnitude and direction:+for CCW and for CW) about the nut joint Express your answer in Sl units with 3 or more significant figures 0.28 m QUESTION 2 The drawing shows a person mass 59 kg. doing push-ups. Find the force exerted by the floor on each foot assuming that the person holds this position Express your answer in...
QUESTION 2 The drawing shows a person mass-59 kg. doing push-ups. Find the force exerted by...
QUESTION 2 The drawing shows a person mass-59 kg. doing push-ups. Find the force exerted by the floor on each foot, assuming that the person holds this position. Express your answer is Sl units with 3 or more significant figures 0.90 m 1.50 m QUESTION 3 A uniform lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray is 0.11 kg. On the tray is a 1 kg plate of food and a...
Hold your upper arm vertical and your lower arm horizontal with
your hand palm-down on a table, as shown in the figure. If you now
push down on the table, youll feel that your triceps muscle has
contracted and is trying to pivot your lower arm about the elbow
joint. If a person with the arm dimensions shown pushes down hard
with a 90 N force (about 20 lbs), what force must the triceps
muscle provide? You can ignore the...
Hold your upper arm vertical and your lower arm horizontal with
your hand palm-down on a table, as shown in the figure. If you now
push down on the table, youll feel that your triceps muscle has
contracted and is trying to pivot your lower arm about the elbow
joint. If a person with the arm dimensions shown pushes down hard
with a 90 N force (about 20 lbs), what force must the triceps
muscle provide? You can ignore the...
A standard man holds the upper arm vertical and the lower arm horizontal with an object of mass M = 5 kg resting on the hand, as illustrated in the figure. The mass of the lower arm and hand is one-half the mass of the entire arm. As shown in the figure, there are four forces acting on the lower arm: the force Fexerted by the bones and ligaments of the upper arm at the elbow (fulcrum), the tension T...
To determine the force a person's triceps muscle can exert, a
doctor uses the procedure shown in the figure(Figure 1), where the
patient pushes down with the palm of his hand on a force meter.
Given that the weight of the lower arm is Mg = 15.5 N , and that
the force meter reads F = 90.0 N , what is the force FT exerted
vertically upward by the triceps?
Humerus Triceps Axis Radius Ulna FI Force meter 2.78...
A load of 10 kg is held in one hand, with the lower arm horizontal. The lower arm has mass 1.5 kg The distance from the elbow to the hand is 30 cm and the COM can be assumed to be 40% of this distance (from E to H). a) What is the external static elbow moment? (31.2 Nm) b) If the biceps muscle acts with a perpendicular moment arm of 5cm, what force must it generate in order to...
A person with their upper arm vertical and their forearm horizontal holds a 4.5-kg iron cannon ball as shown in the figure below. Assume the mass of the forearm and hand is 1.5 kg, with a center of mass 15 cm from the elbow. The center of the cannonball is 32 cm from the elbow, and the force of the biceps is applied 5.0 cm from the elbow. What force is exerted by the bicep? Elbow contact point 4.5 kg...
FIGURE 12-7 2.5 cm 30.0 cm Elbow joint 21) Assuming the lower arm has a mass of 2.8 kg and its CG is 12 cm from the elbow-joint pivot,21 how much force must the extensor muscle in the upper arm exert on the lower arm to hold a 7.5 kg shot put (Fig. 12-7)? E) 1000 N D) 100 N C) 500 N B) 1500 N A) 750 N .80
Part A A 75.0 kg weight lifter is doing arm raises using a 7.50 kg weight in her hand. Her arm pivots around the elbow joint, starting 40.0° below the horizontal (See the figure(Figure 1).) Biometric measurements have shown that both forearms and the hands together account for 5.75 % of a person's weight. Since the upper arm is held vertically, the biceps muscle always acts vertically and is attached to the bones of the forearm 5.50 cm from the...
QUESTION 1 A wrench is used to loosen a nut as shown below by applying a force 13 N. Determine the torque (magnitude and direction:+for CCW and for CW) about the nut joint Express your answer in Sl units with 3 or more significant figures 0.28 m QUESTION 2 The drawing shows a person mass 59 kg. doing push-ups. Find the force exerted by the floor on each foot assuming that the person holds this position Express your answer in...
QUESTION 2 The drawing shows a person mass-59 kg. doing push-ups. Find the force exerted by the floor on each foot, assuming that the person holds this position. Express your answer is Sl units with 3 or more significant figures 0.90 m 1.50 m QUESTION 3 A uniform lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray is 0.11 kg. On the tray is a 1 kg plate of food and a...
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