If you hold your arm outstretched with your palm upward, the force to keep your arm from falling comes from your deltoid muscle. Assume that the arm with hand has mass 4.25 kg and the distances and angles shown. What force must the deltoid muscle provide to keep the arm in this position, in Newtons? Use g = 10.0 m/s2. Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

Q: 02 Pin

A:

Q: (a) A worker stands a distance d = 0.725 m from the left end of a platform as shown in the figure.…

A:

Q: Three forces F, = 20 N, F2 = 10 N and F, = 5.0 N act on the structure shown in figure below. A…

A:

Q: A tower crane (Figure 1) must always be carefully balanced so that there is no net torque tending to…

A: Solution: Given that m=2600kgM=8200kgL=7.7 ml=3.4 m

Q: This figure shows a person preparing to do a pushup. Calculate the back extensor force (Fm) required…

A:

Q: 77-kg man stands on his toes by exerting an upward force through the Achilles tendon, as in the…

A:

Q: Two children push on opposite sides of a door during play. Both push horizontally and perpendicular…

A:

Q: The  figure  shows  a  100.kg  box  suspended from the extreme  side of the  horizontal   truss.…

A: In this problem we will use condition of static equilibrium.

Q: Problem 1: Two children push on opposite sides of a door during play. Both push horizontally and…

A:

Q: A uniform horizontal strut weighs 290.0 N. One end of the strut is attached to a hinged support at…

A:

Q: Two people are carrying a uniform wooden board that is 3.10 m long and weighs 190 N. If one person…

A: Draw the free-body diagram of the beam.

Q: Two children push on opposite sides of a door during play. Both push horizontally and perpendicular…

A:

Q: The figure below shows a bird feeder that weighs 177.7 N. The feeder is supported by a vertical…

A: Given:Weight of bird feeder = 177.7 N

Q: The cable AB prevents bar OA from rotating clockwise about the pivot O. If the cable tension is 680…

A: Given Information : T=680N To find: n andt components of the force acting on point A

Q: Two children push on opposite sides of a door during play. Both push horizontally and perpendicular…

A: The first child applies a force F1 = 17.1 N at a distance r1 = 0.551 m from the hinges, on one side…

Q: A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold…

A: Given : Weight of scaffold (w1) = 206 N Length (L) = 3.5 m Weight of worker (w2) = 698 N Distance…

Q: A diving board W = 250 N is supported by two posts, one at the far end and one x 1.5 m away from the…

A: Approach to solving the question:Please see attached photo for detailed solutions. Thank…

Q: As you are sitting, draw the FBD of your right foot. How would the FBD of your foot change if…

A: Given:- As you are sitting and you are standing on the right foot  Find:- The free body diagram for…

Q: A F F F 100 kg 100 kg 100 kg D E F F F 200 kg 200 kg 200 kg

A: Just use the lever principle for balance  That is  F1d1=F2d2

Q: An object that weighs 1180 N rests on a lever at a point 0.390 m from a support. On the same side of…

A: Given: P = 1180 N x = 0.390m

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

A: To find the force that the deltoid muscle must provide to keep the arm in an outstretched position,…

Q: The two structural members, one of which is in tension and the other in compression, exert the…

A:

Q: The two structural members, one of which is in tension and the other in compression, exert the…

A: First we find the resultant  force of f1 and f2 and then angle between force f1 and resultant R from…

Q: A painter stands on a uniform horizontal beam of length L = 6.0 m that is held in equilibrium by…

A:

Q: Problem 2: A block is suspended at the end of a beam held up by a cable as shown. The block has mass…

A: Given information: The mass of the block, M=15 kg The mass of the beam, mb=8.6 kg The length of the…

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

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

Q: A 200 N sign hangs from the middle of a cable between two buildings. The ends of each cable are…

A: For the sign to be in equilibrium, the net force on the sign in vertical direction must be zero. The…

Q: A person of mass m is standing on his tiptoes on both feet. The situation is pictured on the right.…

A:

Q: Problem 6: The figure shows the forearm of a person holding a book. The biceps exert a force FB, and…

A: Apply the equilibrium condition of torque about the elbow joint and substitute the corresponding…

Q: 1. The picture shows a heavy ball held in the palm of a hand. The mass of the ball M is 7.5 kg. The…

A:

Q: The human mandible (lower jaw) is attached to the temporomandibular joint (TMJ). The masseter muscle…

A:

Q: A uniform 50-kg scaffold of length 7.0 m is supported by two light cables, as shown below. A 61-kg…

A: Given: The mass of the scaffold is 50 kg. The length of the scaffold is 7 m. The mas of the person…

Q: You’re a highway safety engineer, and you’re asked to specify bolt sizes so the traffic signal shown…

A: Given:-  the figure indicates the masses and positions of the structure’s various parts. The…

Q: Consider the following figure. A beam with a length of 3.0 m and a mass of 100 kg is held by two…

A:

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.