Homework Answers
Four forces of equal magnitude but with directions as shown act at the concern of a...
Four forces of equal magnitude but with directions as shown act at the concern of a square. The square has a fixed pivot point p. Rank (from least to greatest) the torque produced by these forces about the pivot point. We define a positive torque as one in the counter-clockwise direction. Tau_1 = Tau_2 = Tau_3 = Tau_4 Tau_1 < Tau_2 = Tau_4 < Tau_3 Tau_1 < Tau_2 = Tau_3 < Tau_4 Tau_4 < Tau_1 < Tau_2 < Tau_3 A...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k is attached at one end to a frictionless pivot and is free to rotate about the pivot in the vertical plane as in the figure. The rod is released from rest in the horizontal position. What are the initial angular acceleration of the rod and the initial translational acceleration of its right end Pivot SOLVE IT Mg A rod is free to rotate around...
6) [8 pts] In the diagram shown, the uniform rod is free to pivot about its...
6) [8 pts] In the diagram shown, the uniform rod is free to pivot about its base in the plane of the paper. It is motionless and stable at an angle of 30 degrees from the horizontal.The rod has a mass of 4.0 kg and a length of 60.0 cm. The 3.0 kg mass is suspended 40.0 cm from the pivot end of the rod. The wire is anchored 20 cm (vertically) above the pivot point, and is horizontal. Find...
Two forces equal in magnitude and opposite in direction, acting on an object at two different...
Two forces equal in magnitude and opposite in direction, acting on an object at two different points, form what is called a couple. Two antiparallel forces with equal magnitudes_1 = F_2 =7.90 N are applied to a rod as shown in the figure (Figure1). What should the distance l between the forces be if they are to provide a net torque of 5.20 N m about the left end of the rod? Is the sense of this torque clockwise or...
Calculate the net torque about point o for the two forces applied as in the figure
1. Calculate the net torque about point o for the two forces applied as in the figure. The rod and both forces are in the plane of the page. Take positive torques to be counterclockwise. 2. A square metal plate 0.180 m on each side is pivoted about an axis through point center and perpendicular to the plate. Calculate the net torque about this axis due to the three forces shown in the figure if the magnitudes of the forces are...
please help A2 kN force acts on point A of rod AB as shown. Rod ABS...
please help
A2 kN force acts on point A of rod AB as shown. Rod ABS 305 mm long. The angle a 40° Determine the magnitude in newtons and direction in degrees counterclockwise from the ex-axis of the smallest force that will create the same moment about point B as does the 2 KN magnitude 435.23 TXN counterclockwise from the director x-axis Forces F, and F, act as shown at points B and C, respectively. u F = 440 N...
Be sure to answer the question at the bottom of the multiple choice! Thanks! As shown...
Be sure to answer the question at the bottom of the multiple
choice! Thanks!
As shown in the figure, a given force is applied to a rod in several different ways. In which case is the torque about the pivot P due to this force the greatest? A) 1 B) 2 C) 3 D) 4 E) 5 Why?
Multiple Choice (select the best answer) (2 pts each 1. Consider a uniform hoop of radius...
Multiple Choice (select the best answer) (2 pts each 1. Consider a uniform hoop of radius R and mass M rolling without slipping. Which is larger, its translational kinetic energy or its rotational kinetic energy? A) Translational kinetic energy is larger B) Rotational kinetic energy is larger. C) Both are equal. D) You need to know the speed of the hoop to tell. 2. A disk and a hoop of the same mass and radius are released at the same...
Use the standard conventions of up being the ty direction, right being the +x direction, and...
Use the standard conventions of up being the ty direction, right being the +x direction, and counterclockwise as being the positive rotational direction. Five forces act on a thin rod of mass 12kg and length 1m as shown. All five foreacha magnitude. The center of mass of the rod is shown as a dot, and the axis of rotation is an X 1) Which of the forces exert zero torque about the axis shown? a) F b) F3 c) F2,...
For the bar shown below, two forces, 80 N and 70 N, act on the bar....
For
the bar shown below, two forces, 80 N and 70 N, act on the bar.
What's the magnitude of the torque at the pivot due to the 70 N
force?
A. 140 Nm
B. 35 Nm
C. 70 Nm
D. 0 Nm
Show your work.
Four forces of equal magnitude but with directions as shown act at the concern of a square. The square has a fixed pivot point p. Rank (from least to greatest) the torque produced by these forces about the pivot point. We define a positive torque as one in the counter-clockwise direction. Tau_1 = Tau_2 = Tau_3 = Tau_4 Tau_1 < Tau_2 = Tau_4 < Tau_3 Tau_1 < Tau_2 = Tau_3 < Tau_4 Tau_4 < Tau_1 < Tau_2 < Tau_3 A...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k is attached at one end to a frictionless pivot and is free to rotate about the pivot in the vertical plane as in the figure. The rod is released from rest in the horizontal position. What are the initial angular acceleration of the rod and the initial translational acceleration of its right end Pivot SOLVE IT Mg A rod is free to rotate around...
6) [8 pts] In the diagram shown, the uniform rod is free to pivot about its base in the plane of the paper. It is motionless and stable at an angle of 30 degrees from the horizontal.The rod has a mass of 4.0 kg and a length of 60.0 cm. The 3.0 kg mass is suspended 40.0 cm from the pivot end of the rod. The wire is anchored 20 cm (vertically) above the pivot point, and is horizontal. Find...
Two forces equal in magnitude and opposite in direction, acting on an object at two different points, form what is called a couple. Two antiparallel forces with equal magnitudes_1 = F_2 =7.90 N are applied to a rod as shown in the figure (Figure1). What should the distance l between the forces be if they are to provide a net torque of 5.20 N m about the left end of the rod? Is the sense of this torque clockwise or...
please help
A2 kN force acts on point A of rod AB as shown. Rod ABS 305 mm long. The angle a 40° Determine the magnitude in newtons and direction in degrees counterclockwise from the ex-axis of the smallest force that will create the same moment about point B as does the 2 KN magnitude 435.23 TXN counterclockwise from the director x-axis Forces F, and F, act as shown at points B and C, respectively. u F = 440 N...
Be sure to answer the question at the bottom of the multiple
choice! Thanks!
As shown in the figure, a given force is applied to a rod in several different ways. In which case is the torque about the pivot P due to this force the greatest? A) 1 B) 2 C) 3 D) 4 E) 5 Why?
Multiple Choice (select the best answer) (2 pts each 1. Consider a uniform hoop of radius R and mass M rolling without slipping. Which is larger, its translational kinetic energy or its rotational kinetic energy? A) Translational kinetic energy is larger B) Rotational kinetic energy is larger. C) Both are equal. D) You need to know the speed of the hoop to tell. 2. A disk and a hoop of the same mass and radius are released at the same...
Use the standard conventions of up being the ty direction, right being the +x direction, and counterclockwise as being the positive rotational direction. Five forces act on a thin rod of mass 12kg and length 1m as shown. All five foreacha magnitude. The center of mass of the rod is shown as a dot, and the axis of rotation is an X 1) Which of the forces exert zero torque about the axis shown? a) F b) F3 c) F2,...
For
the bar shown below, two forces, 80 N and 70 N, act on the bar.
What's the magnitude of the torque at the pivot due to the 70 N
force?
A. 140 Nm
B. 35 Nm
C. 70 Nm
D. 0 Nm
Show your work.
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