A deadlift is a weightlifting movement in which a lifter pulls a barbell from the floor directly upwards. A liter attempts a 110 kg deadlift. To do so, he engages three major muscles to propel the bar upwards: the quadriceps (91, the hamstrings (h) and the glutes (a), Determine the angle and force of the resultant vector, r, in which the lifter pulls the bar, given the following information: h.g = 0 刚=1 sec 0 = 2 q has a direction of 0 + 29° 土 600N g 519N Figure 1 Figure 2 (not drawn to scale)

A deadlift is a weightlifting movement in which a lifter pulls a barbell from the floor directly upwards. A liter attempts a 110 kg deadlift. To do so, he engages three major muscles to propel the bar upwards: the quadriceps (91, the hamstrings (h) and the glutes (a), Determine the angle and force of the resultant vector, r, in which the lifter pulls the bar, given the following information: h.g = 0 刚=1 sec 0 = 2 q has a direction of 0 + 29° 土 600N g 519N Figure 1 Figure 2 (not drawn to scale)

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.110P: The 12-lb force is applied to the handle of the toggle cutter. Determine the force exerted by the...

See similar textbooks

Related questions

Q: Q.2) A person uses an exercise band with an elastic modulus (spring constant) of 35 lb/ft. They…

Q: Replace the force system acting on the beam by an equivalent resultant force and couple moment at…

A: GivenF1=380lbF2=420 lbF3=370 lb

Q: 8. If you stand on one foot while holding your other leg up behind you, your muscles apply a force…

A: Given data: Mass of lower leg, m = 4 kg. Calculate the weight of the leg, W=mg=4 kg×9.81 m/s2×1 N1…

Q: From the lesson of spatial force system, resolve problem 3 if x = 15 m, y = 20 m, the support at A…

Q: Two horses on opposite banks of a canal pull a barge moving parallel to the banks by means of two…

Q: In picking up a load from position B, a cable tension T of magnitude 24 kN is developed on the…

Q: Four truss members carrying the indicated forces have their centerlines all intersecting at point P…

A: To solve this problem we have resolved forces in x and y direction.

Q: 1. Draw free-body diagrams (FBDs) for the specified rigid bodies. Then, write the coordinates of…

A: Given:2 structures.To find:(a) Draw free body diagram of each.(b) Write the coordinates of each…

Q: Problem 16.2 Two forces act on the planar, rigid body shown in the figure. Determine the individual…

Q: The quadriceps tendon attaches to the tibia at a 30°angle 4 cm from the joint center at the knee.…

Q: The depicted system consists of two vertical beams of length L, which are hinge supported in A and B…

Q: The weight of a 20 lb oven door acts vertically through point D. The door is supported by a hinge at…

A: The weight of the oven is W = 20 lbThe F obtaied for&nbsp; and Let the force Fs acting on the…

Q: A 10-m uniform beam of weight 100 N is supported by two ropes at its ends. If a 400-N person sits at…

Q: Calculate the force and moment reactions at the bolted base O of the overhead traffice-signal…

Q: A man holds a 187-N ball in his hand, with the forearm horizontal (see the figure). He can support…

Q: A bodybuilder holds a dumbbell of weight Wd. His arm is horizontal and weighs 41 N. The deltoid…

Q: Calculate the force and moment reactions at the bolted base O of the overhead traffice-signal…

A: For the given system mass of rod AC = 60 kg mass of traffic light A and B respectively = 43 kg…

Q: An architecture student working at a drafting table requires some muscle action in order to support…

A: iven: FM=70 NW=40 N

Q: Q.5) A steel bar OC with attached spring at B and cable at C can rotate freely in a horizontal plane…

Q: Q3. Beam OA is supported by a ball and socket joint at O and Cables AB and AC. If a 150 N force is…

A: In order to find out the forces acting on the tension support, assume a tension in the cable and…

Q: 3. Determine the height d of cable AB so that the force in cables 4D and 4C is one-half as great as…

Question

A deadift is a weightlifting movement in which a lifter pulls a barbell from the floor directly upwards.
A lifter attempts a 110 kg deadlift. To do so, he engages three maior muscles to propel the bar upwards: the quadriceps
(a), the hamstrings (h) and the glutes (a), Determine the angle and force of the resultant vector, r, in which the lirter
pulls the bar, given the following information:
h g = 0
sec 0 = 2
q has a direction of 0 + 29°
土
600N g
519N
Figure 1
Figure 2 (not drawn to scale)

c. Write a vector in component form to model the force h produced by the hamstrings.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The 12-lb force is applied to the handle of the toggle cutter. Determine the force exerted by the cutting blade CB on the workpiece E.
Show that all diagonal members of the truss carry the same force, and find the magnitude of this force.
3. Boom ABC is supported by a ball- in-socket at A, cable EBCG and cable CD. Here, cable EBCG passes through small frictionless loops at B and C, and B is at the center of the ABC boom. Neglect the weight of boom ABC. Use the vector formulation to determine the tension force in cable EBCG and the tension force in cable CD. (Hint: the tension force magnitude in cable EBCG is the same throughout the cable. Cable CD is another cable. Think very carefully about what to be taken as the free body, which is not very straightforward, e.g., it is NOT good to take boom ABC as the free body.) 12m x 16m 7.5m B 12m 30 N 20m 9m
Whats the true options of the two parts of q
Determine the magnitude of the moment about A ( lb in) that produces the 125 lb force necessary to raise the window and whose line of action is the same as that of the shock absorber CB 20.5 in. 4.38 in. A B C 7.62 in. 17.2 in.
(1) To move a boat uniformly along the river at a given speed, a resultant force R = 520 N is required. Two men pull with force P and Q, by means of ropes to do this. The ropes make an angle of 30° and 40° respectively with the sides of the river as shown in Fig. 1. (i) Determine the force P and Q, (ii) If 01 = 30° , find the value of 62 such that the force in the rope Q is minimum. What is the minimum force Q ? 300 R 02 40° Figure 1
Q.2) A person uses an exercise band with an elastic modulus (spring constant) of 35 lb/ft. They begin the exercise with their arm relaxed in the vertical position (OA), at which point the band is unstretched. The person rotates their arm up to the horizontal position shown, so that their shoulder is at point O and their hand is at point B. Determine the moment exerted by the elastic band on the person's shoulder joint in this position. 24 in B. 24" (F 28 in C
A tractor becomes stuck in the mud, and the operator plans to use a truck positioned at point A to pull it free. a. If a 400 lb force in the direction of the tractor’s chassis (i.e., in the direction from O to B) is sufficient to free it, determine the force the truck must produce in the cable. Also, determine the portion of the cable force that is perpendicular to the tractor’s direction, since in the tractor’s precarious condition this force will tend to tip it. b. If the trees were not present, determine the ideal location on the road where the truck should be positioned, with a short explanation of why.
Polnt O. Answers: M1 = 3371.2 Nm: M, = 1607.2 Nm; Mp = 2548 Nm: Mnet = 7526.4Nm (a = 16 Cll that all poir les the same p = 6.3 Mnet angle 0 = 1 weight pan Problem 3.5 Consider a person using an exercise apparatus who is holding a handle that is attached to a cable (Fig. 3.31). The cable is wrapped around a pulley and attached to a weight pan. The weight in the weight pan stretches the cable and produces a tensile force F in the cable. This force is transmitted to the person's hand through the handle. The force makes an angle 0 with the horizontal and applied to the hand at point B. Point A represents the center of gravity of the person's lower W Answer: m Fig. 3.31 Problems 3.5 and 3.7 Problem 3. hamstring s lete trainin
Three stage lights are mounted on a pipe as shown. The lights at A and B each weigh 4.1 lb, while the one at C weighs 3.5 lb. (a) If d= 25 in., determine the distance from D to the line of action of the resultant of the weights of the three lights. (b) Determine thevalue of d so that the resultant of the weights passes through the midpoint of the pipe.
Help!
A 15-lb force acts at point A on the high-pressure water cock. Replace this force with (a) a force couple system, the force of which acts at point B; and (b) two horizontal forces, one acting at point B and the other acting at point C.