Homework Answers
. The man pulls on the rope at C with a force of 70 lb which...
. The man pulls on the rope at C with a force of 70 lb which causes the forces FA and FC at B to have this same magnitude. Determine the magnitude and coordinate direction angles of the resultant force acting at B.
Chapter 2, Problem 2/036 Multistep A man exerts a force F on the handle of the...
Chapter 2, Problem 2/036 Multistep A man exerts a force F on the handle of the stationary wheelbarrow at A. The weight of the wheelbarrow along with its load of dirt is 120 lb with center of gravity at G. For the configuration shown, what force F must the man apply at A to make the net moment about the tire contact point B equal to zero? 54 23 23" 45" 9"
Problem 13.71 3 of Determine the magnitude of the resultant normal force the cushion exerts on...
Problem 13.71 3 of Determine the magnitude of the resultant normal force the cushion exerts on him. Express your answer to three significant figures and include the appropriate units. The 150-lb man lies against the cushion for which the coefficient of static friction is 0.5. Due to rotation about the z axis, he has a constant speed v 20 ft/s. Neglect the size of the man. Take θ= 60°. (Figure 1) Figure | = | Value Units of 1 Submit...
If each box weighs 160 lb , determine the least horizontal force P that the man...
If each box weighs 160 lb ,
determine the least horizontal force P that the man must exert on
the top box in order to cause motion. The coefficient of static
friction between the boxes is μs = 0.80, and the coefficient of
static friction between the box and the floor is μ′s = 0.25.
(Figure 1)
-3 ft 4.5 ft 5 ft 4.5 ft А B
(5 pt.) Determine the moment about point A caused by the forces at B and C....
(5 pt.) Determine the moment about point A caused by the forces at B and C. Be sure to indicate the direction of the rotation as clockwise or counterclockwise. (Hint: Break the 2.5kN force into its x & y components first. Which component creates a moment about point A? Which component does not?). 10,kN 2.5 kN +A C45 7.5 m7.5 m 2. (5 pt.) Determine the magnitude and location of the resultant of the parallel force system. Locate the resultant...
Part A If each box weighs 160 lb , determine the least horizontal force P that...
Part A If each box weighs 160 lb , determine the least horizontal force P that the man must exert on the top box in order to cause motion. The coefficient of static friction between the boxes is Ms = 0.80, and the coefficient of static friction between the box and the floor is M's = 0.25. (Figure 1) Express your answer with the appropriate units. μΑ ? re 1 of 1 P= Value Units -3 ft Submit Request Answer...
[15%] QUESTION 3 Determine the moment of the force F about the door hinge at B....
[15%] QUESTION 3 Determine the moment of the force F about the door hinge at B. 4 ft 7 ft F=80 lb 15 ft 45。 1.5 ft 5 ft 3 ft
Consider the ladder in 8.15. Compute the normal force again, assuming a 75 kg man is...
Consider the ladder in 8.15. Compute the normal force again,
assuming a 75 kg man is standing on the ladder (a) at its midpoint
and (b) four fifths of the way up the latter.
I posted this question earlier but was very confused on how it
was answered and laid out. I am not understanding how to go about
this or what formulas to use.
I know the answers is (a) 130.95 N and (b) 194.2 N but I do...
3. Two forces and a moment act on the bracket below. a) Find the resultant force....
3. Two forces and a moment act on the bracket below. a) Find the resultant force. b) Replace the given system with an equivalent force-couple system acting at B. Sketch the result in the space provided below. Replace the given system with an equivalent system consisting of only a force whose line of action intersects the x axis. Determine the coordinate, d, of the point of intersection on the x axis. Sketch the result in the space provided below.4 SOON...
To understand the two most common procedures for finding torques when the forces and displacements are all in one plan...
To understand the two most
common procedures for finding torques when the forces and
displacements are all in one plane: the moment arm method and the
tangential force method. The purpose of this problem is to give you
further practice finding torques in two-dimensional situations. In
this case it is overkill to use the full cross product definition
of the torque because the only nonzero component of the torque is
the component perpendicular to the plane containing the problem.
There...
Chapter 2, Problem 2/036 Multistep A man exerts a force F on the handle of the stationary wheelbarrow at A. The weight of the wheelbarrow along with its load of dirt is 120 lb with center of gravity at G. For the configuration shown, what force F must the man apply at A to make the net moment about the tire contact point B equal to zero? 54 23 23" 45" 9"
Problem 13.71 3 of Determine the magnitude of the resultant normal force the cushion exerts on him. Express your answer to three significant figures and include the appropriate units. The 150-lb man lies against the cushion for which the coefficient of static friction is 0.5. Due to rotation about the z axis, he has a constant speed v 20 ft/s. Neglect the size of the man. Take θ= 60°. (Figure 1) Figure | = | Value Units of 1 Submit...
If each box weighs 160 lb ,
determine the least horizontal force P that the man must exert on
the top box in order to cause motion. The coefficient of static
friction between the boxes is μs = 0.80, and the coefficient of
static friction between the box and the floor is μ′s = 0.25.
(Figure 1)
-3 ft 4.5 ft 5 ft 4.5 ft А B
(5 pt.) Determine the moment about point A caused by the forces at B and C. Be sure to indicate the direction of the rotation as clockwise or counterclockwise. (Hint: Break the 2.5kN force into its x & y components first. Which component creates a moment about point A? Which component does not?). 10,kN 2.5 kN +A C45 7.5 m7.5 m 2. (5 pt.) Determine the magnitude and location of the resultant of the parallel force system. Locate the resultant...
Part A If each box weighs 160 lb , determine the least horizontal force P that the man must exert on the top box in order to cause motion. The coefficient of static friction between the boxes is Ms = 0.80, and the coefficient of static friction between the box and the floor is M's = 0.25. (Figure 1) Express your answer with the appropriate units. μΑ ? re 1 of 1 P= Value Units -3 ft Submit Request Answer...
[15%] QUESTION 3 Determine the moment of the force F about the door hinge at B. 4 ft 7 ft F=80 lb 15 ft 45。 1.5 ft 5 ft 3 ft
Consider the ladder in 8.15. Compute the normal force again,
assuming a 75 kg man is standing on the ladder (a) at its midpoint
and (b) four fifths of the way up the latter.
I posted this question earlier but was very confused on how it
was answered and laid out. I am not understanding how to go about
this or what formulas to use.
I know the answers is (a) 130.95 N and (b) 194.2 N but I do...
3. Two forces and a moment act on the bracket below. a) Find the resultant force. b) Replace the given system with an equivalent force-couple system acting at B. Sketch the result in the space provided below. Replace the given system with an equivalent system consisting of only a force whose line of action intersects the x axis. Determine the coordinate, d, of the point of intersection on the x axis. Sketch the result in the space provided below.4 SOON...
To understand the two most
common procedures for finding torques when the forces and
displacements are all in one plane: the moment arm method and the
tangential force method. The purpose of this problem is to give you
further practice finding torques in two-dimensional situations. In
this case it is overkill to use the full cross product definition
of the torque because the only nonzero component of the torque is
the component perpendicular to the plane containing the problem.
There...
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