CNF14 cm s=4.5 cm 1=32 cm
Q: A mother leans horizontally over the crib to lift her 18.8 kg baby. The moment arm of the baby about…
A:
Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…
A:
Q: Your neighbor designs automobiles for a living. You are fascinated with her work. She is designing a…
A:
Q: The system shown in the figure is in static equilibrium and the angle 30 degrees. The surface of the…
A: Since the system of the two masses is in static equilibrium, it means that the masses are such that…
Q: In the figure, a nonuniform bar is suspended at rest in a horizontal position by two massless cords…
A:
Q: You hold a softball with a weight of 1.80 N in your hand as shown in the figure. Your arm is moving,…
A: The net torque acting on the elbow is the sum of the torque acting on biceps, hand and the…
Q: A rehabilitation patient is doing arm curl exercises by lifting a 90 N dumbbell (W), as shown, to…
A: To find : Reaction force Ry Stress in the humerus Strain in the humerus Change in length ∆l
Q: As shown in the figure, a beam is supported by two pillars separated by a distance ℓ = 6.3 m. The…
A: Analyze the diagram of the question with all acting forces is given below, Here, N1, N2 denotes the…
Q: You have a pulley 11.8 cm in diameter and with a mass of 1.4 kg. You get to wondering whether the…
A: The radius of the disk is r=d2=11.82=5.9 cm=0.059 m The moment of inertia of the considering as…
Q: Your neighbor designs automobiles for a living. You are fascinated with her work. She is designing a…
A:
Q: The figure below shows a human arm that weighs 43.40 N. The arm is extended outward and is…
A:
Q: he figure shows an outstretched arm (0.61 m in length) that is parallel to the floor. The arm is…
A:
Q: A 0.5 kg meter stick has a center of mass at the 50 cm mark. You place a pivot at the 50 cm mark and…
A:
Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…
A:
Q: A hungry 800-N bear walks out on a beam in an attempt to retrieve some "goodies" hanging at the end.…
A:
Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…
A:
Q: Suppose a 417 kg alligator of length 3.3 m is stretched out on a board of the same length weighing…
A:
Q: Big Sister and Little Brother are balanced on a see-saw. Big Sister sits a distance of 1.13m away…
A: Please see the attached image for the solution. If there are queries or if the image is not…
Q: The figure shows an outstretched arm (0.61 m in length) that is parallel to the floor. The arm is…
A:
Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…
A:
Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…
A:
Q: A 94.5 kg window-washer is working on a uniform plank of 132 kg and length 16.3 m is supported at…
A:
Q: A man holds a 167-N ball in his hand, with the forearm horizontal (see the figure). He can support…
A:
Q: Bugs Bunny, during his training for the Space Jam sequel, is trying to perform a biceps curl and is…
A:
Q: The figure belovr shovs a human arm that weighs 44.4 N. The arm is extended outard and is…
A:
Q: In the figure, a nonuniform bar is suspended at rest in a horizontal position by two massless cords…
A: Given Data: The bar length, L = 6.6 m One cord angle is 44.9 degrees and another one is 45.1…
Q: Find the x- and y-coordinates of the center of gravity for the boomerang as in (a) of the figure…
A: Length , L = 0.232 mMass, m = 0.290 kgTo find = x and y co-ordinates of center of gravity of the…
Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…
A:
Q: The femur of a human leg (mass 10 kg, length 0.9 m) is in traction, as shown in the figure. The…
A:
Q: A 75.0 kg weight lifter is doing arm raises using a 7.50 kg weight in her hand. Her arm pivots…
A:
Q: The 64-kg man with center of mass G supports the 28-kg drum as shown. Find the greatest distance x…
A: The data given is as follows: 1. Mass of man, mm=64 kg 2. Mass of drum, md=28 kg 3. Coefficient of…
Q: A gymnast does a one-arm handstand. The humerus, which is the upper arm bone between the elbow and…
A:
Q: Treat the upper limb as one segment with a centre of mass (d2) 36.0 cm from the shoulder joint. The…
A: The objective of this question is to determine the vertical component of the force created by the…
Q: You hold a softball with a weight of 1.80 N in your hand as shown in the figure. Your arm is moving,…
A:
Q: You have a pulley 12.6 cm in diameter and with a mass of 2.0 kg. You get to wondering whether the…
A:
Q: no ai please. it will be wrong
A: Please see the attached image for the solution.If there are queries or if the image is not loading,…
The forces exerted by the bicep muscle and acting on the elbow when a 12 kg barbell is being curled can be modeled based on the diagram above. The bicep muscle can be treated as a vertical cable. The mass and length of the forearm are 2 kg and 32 cm, respectively. The center of mass of the forearm is a distance of 14 cm from the point P, while the bicep connects to the forearm at a point 4.5 cm from P.
a) Determine the tension in bicep muscle and the force of the humerus acting downward on the elbow at point P.
b) Assuming the tension in the bicep muscle continues to be oriented vertically, determine the tension in the bicep muscle and the force acting at P after the barbell has been raised by an angle of 30 degrees relative to the horizontal.
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 5 images
- A homeowner is trying to move a stubborn rock from his yard. By using a a metal rod as a lever arm and a fulcrum (or pivot point) the homeowner will have a better chance of moving the rock. The homeowner places the fulcrum a distance d = 0.255 m from the rock, which has a mass of 405 kg, and fits one end of the rod under the rock's center of weight. If the homeowner can apply a maximum force of 695 N at the other end of the rod, what is the minimum total length L of the rod required to move the rock? Assume that the rod is massless and nearly horizontal so that the weight of the rock and homeowner's force are both essentially vertical. The acceleration due to gravity is g = 9.81 m/s². L =Elements of the lower arm are shown in the figure. The weight of the forearm is at Q = 55 N and its center of gravity is at point G. Hand held If the weight of the sphere is W = 160 N and the angle of the lower arm with the vertical is 0 = 40 °, the moment at the elbow pivot point O is 0 (zero). What should be the tension force T in the muscle to be? a = 11 cm, b = 24 cm andc = 52 cm. a)O 699 N b) O 521 N c) 1559 N d) 600 N e) 759 N 833 NYou have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M = 10 kg, length L = 3.4 m) that can be moved so that the pivot is a distance d from the center of the board. This will allow riders to achieve static equilibrium even if they are of different mass, as most people are. You have decided that each rider will be positioned so that his/her center of mass will be a distance xoffset = 14 cm from the end of the board when seated as shown.You have selected a child of mass m1 = 29 kg (shown on the right), and an adult of mass m2 = 71 kg (shown on the left) to test out your prototype. Determine the distance d in meters. Determine the magnitude of the force exerted on the pivot point by the see-saw while in use in newtons.
- We can stand for a longer time in the position on the left compared to the position on the right because (ignore the box): E O the barbell creates more torque in the left-side position O the weight is heavier in the right-side position our muscles can generate force for long periods of time 鱼 hp no TH ?A board of mass 3.0Kg serves as a seesaw for two children. Child A has a mass of 40Kg and sits 2.5m from the pivot point. At what distance x should a child B of mass 25Kg sit from the pivot point so as to balance the seesaw? What is the normal force at the pivot point? Assume the board is uniform and centered over the pivot.Please asap
- You have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M = 11 kg, length L = 11 m) that can be moved so that the pivot is a distance d from the center of the board. This will allow riders to achieve static equilibrium even if they are of different mass, as most people are. You have decided that each rider will be positioned so that his/her center of mass will be a distance xoffset = 29 cm from the end of the board when seated as shown.You have selected a child of mass m = 23 kg (shown on the right), and an adult of mass n =3 times the mass of the child (shown on the left) to test out your prototype. 1) Determine the distance d in m. d = 2) Determine the magnitude of the force exerted on the pivot point by the see-saw in N. Fb =You have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M = 7 kg, length L = 7 m) that can be moved so that the pivot is a distance d from the center of the board. This will allow riders to achieve static equilibrium even if they are of different mass, as most people are. You have decided that each rider will be positioned so that his/her center of mass will be a distance xoffset = 11 cm from the end of the board when seated as shown.You have selected a child of mass m = 29 kg (shown on the right), and an adult of mass n =3 times the mass of the child (shown on the left) to test out your prototype. d=1.59m Determine the magnitude of the force exerted on the pivot point by the see-saw in N.A 45.5‑kg box with the dimensions a×b (the width a = 0.6 m and height b = 1.3 m) is standing on a rough horizontal floor (μs = 1.3). A Professor wants to tip the box over, she pushes on the right side of the box with a horizontal force F = 140 N at a distance h = 1.04 m above the floor as shown in the picture below. The other forces acting on the box are the gravity force (applied to the CoM of the box), the static friction force Fs and the normal force N (both applied to the lower right corner of the box, point Q). Calculate the magnitude and direction of the torques produced by the forces acting on the box relative to the lower right corner (point Q). Assume uniform mass distribution. 1. The torque due to the external force, τQ(due to F) = 2. The torque due to the weight of the box, τQ(due to mg) = 3. The torque due to the friction force, τQ(due to Fs) = 4. The torque due to the normal force, τQ(due to N) =
- Subject: physicsASK YOUR TEACHER PRACTICE ANOTHER The chewing muscle, the masseter, is one of the strongest in the human body. It is attached to the mandible (lower jawbone) as shown in figure (a). The jawbone is pivoted about a socket just in front of the auditory canal. The forces acting on the jawbone are equivalent to those acting on the curved bar in figure (b). DETAILS SERCP11 8.3.P.033. Mandible magnitude of R magnitude of Masseter Need Help? -7.50 cm - 3.50 cm is the force exerted by the food being chewed against the jawbone, is the force of tension in the masseter, and is the force everted by the socket on the mandible. Find and i (in N) for a person who bites down on a piece of steak with a force of 53.5 N MY NOTESA man is holding a 2.80-kg ball, as shown in the figure. The distance from the elbow joint to the ball is d= 32.5 cm, and the distance from the elbow joint to the insertion of the triceps muscle is d= 2.50cm. The mass of the lower arm, including the hand, is 3.60 kg, and its center of gravity is at a distance d= 13.6cm from the elbow joint. a)Draw a free body diagram of the forearm. b)What is the magnitude of the force FM, exerted by the triceps? c)What is the force exerted by the humerus on the elbow joint?