How much torque does the child exert, taking the knee as the pivot? How much torque does the weight of the leg itself exert? What force () should the upper leg muscle exert to lift the child at a constant speed?

Q: Two forces act on a massless block. If the force FA is known, what must the magnitude of F3 be in…

A: If the block is not rotating about point P that means net moment about point P will always be zero.

Q: The free body diagram below shows the forces acting on the bob when it spins at a rate such that it…

A: GivenFS=string force Fe=Elastic force W=weight of the bob

Q: A lever is a simple machine used to lift heavy objects using a relatively small amount of force. How…

A: This is a lever , which is rigid bar pivoted at a fixed place called fulcrum,Torques are involved in…

Q: A 200 lbf force, F1, is applied to the right end of a 30 ft lever at point A. The weight of the…

A: Given data  F1 = 200 lbf  W = 150 lbf  Mo = 2500 lbf-ft (cw) L = 30 ft To determine  Magnitude and…

Q: 250 N 60 N -0.7 m – 0.15 m - 0.15 m

A: Given-Data:- Wheelbarrow =60N Bag=250N To-Find:- Force exert on each handle

Q: Tarzan, who weighs 669 N, swings from a cliff at the end of a convenient vine that is 21 m long.…

A: Given data: Weight of Tarzan (w) = 669 N Length of convenient vane = 21 m Strength of vine = 950 N…

Q: Two blocks of the same mass, m, are connected by a light string and rest on the slope and in the…

A: According to the given data Both block has mass =m

Q: Two boys hang by their hands from the same tree branch. The branch is straight, and grows out from…

A:

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

A: Given:The mass at the point A is the mass at point B is The mass of member OC is the mass of member…

Q: You may consider the biceps muscles tension to be completely canceled at the shoulder to which they…

A: Consider the free body diagram shown below for the given arm.

Q: What is the magnitude of the force that box A exerts on box B?

A: Given data: The mass of block A is, mA=22 kg. The mass of block B is, mB=8 kg. The horizontal force…

Q: A smooth and weightless rod is subject to a force on one end and a moment at its mass center. If the…

A:

Q: The 1.0 kg block in the figure is tied to the wall with a rope. It sits on top of the 2.0 kg block.…

A: According to the given data  m1=1kg m2=2kg the friction coefficient for both surfaces of block 2…

Q: During the push-off phase of a running stride the ground reaction force under the 1" metatarsal was…

A:

Q: A construction worker on a job site attempts to move a boulder out of the way by attempting to apply…

A: First, we know a total of "F1 "and "F2 "is equal to "F" and after that, we take a moment about point…

Q: vonne is pulling on the doorknob of her dorm door to keep it closed while Joyce is pulling from the…

A: a)Torque is force applied at a distance from some central point (here it is the door hinge)we know…

Q: You are attempting to rotate a heavy table about the base of one leg at O. Assuming the moment about…

A:

Q: in the truss below, the maximum force(s) will occur in members GF, AF, or AB. What component…

A: In the truss below, the maximum force(s) will occur in members GF, AF, or AB.What component sustains…

Q: Force-couple systems: A couple is a pair of forces, equal in magnitude, oppositely directed (sum of…

A:

Q: Block A in the figure weighs 1.16 N and block B weighs 3.62 N. The coefficient of kinetic friction…

A: According to the given data WA=1.16 N WB=3.62N μ=0.293 We need to find (a) Find the magnitude of the…

Q: Blocks of granite are to be hauled up a 15° slope out of a quarry and dirt is to be dumped into the…

A: Given, W1 = Weight of block and cart W2 = Weight of dirt and bucket

Q: Determine the force P for impending sliding motion and the friction forces on all the surfaces.

A:

Q: The cabin of a tram is suspended from a set of wheels that can roll freely on the support cable ACB…

A: (a). The combined weight of the cabin, its support system, and its passengers.Given; α=42o…

Q: While digging a small hole prior to planting a tree, a homeowner encounters rocks. If he exerts a…

A:

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.