3. About-O! F1 3.00 m A square metal plate with mass M = 6.00 [kg] and side length 3. 00 [m] is pivoted about an axis through point 0 at its center and perpendicular to the plate. Three forces of magnitude F1 = 36.0 [N], F2 = 24.0 [N], and F3 = 40. 0 [N] act on the plate as shown. A. What is the net torque on the square plate due to these forces? 30° F3 3.00 m

3. About-O! F1 3.00 m A square metal plate with mass M = 6.00 [kg] and side length 3. 00 [m] is pivoted about an axis through point 0 at its center and perpendicular to the plate. Three forces of magnitude F1 = 36.0 [N], F2 = 24.0 [N], and F3 = 40. 0 [N] act on the plate as shown. A. What is the net torque on the square plate due to these forces? 30° F3 3.00 m

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 37P: To get up on the roof, a person (mass 70.0 kg) places 6.00-m aluminum ladder (mass 10.0 kg) against...

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Suppose just two external forces act on a stationary, rigid object and the two forces are equal in magnitude and opposite in direction. Under what condition does the object start to rotate?
Under what conditions can a rotating body be in equilibrium? Give an example.
(a) Give an example in which the net force acting on an object is zero and yet the net torque is nonzero, (h) (five an example in which the net torque acting on an object is zero and yet the net force is nonzero.
2. A boy weighting 600 N sits 2.5 m from the center of the see-saw. If his friend weighs 750 N, how far from the center should his friend sit so that the see-saw balances?
A tightrope walker is walking between two buildings holding a pole with length ?=18.0 m,L=18.0 m, and mass ??=17.0 kg.mp=17.0 kg. The daredevil grips the pole with each hand a distance ?=0.560 md=0.560 m from the center of the pole. A bird of mass ??=515 gmb=515 g lands on the very end of the left‑hand side of the pole. Assuming the daredevil applies upward forces with the left and right hands in a direction perpendicular to the pole, what magnitude of force ?leftFleft and ?rightFright must the left and right hand exert to counteract the torque of the bird?
1. A museum of modern art is displaying an irregular 426-N sculpture by hanging it from two thin vertical wires, A and B, that are 1.25 m apart. The center of gravity of this piece of art is 48.0 cm from its extremeright tip. Find the tension in each wire. Give also the FBD. Show your complete solution.
A museum of modern art is displaying an irregular 426-N sculpture by hanging it from two thin vertical wires, A and B, that are 1.25 m apart. The center of gravity of this piece of art is 48.0 cm from its extreme right tip. Find the tension in each wire.
4. Orin and Ann, two paramedics, rush a 60.0 kg man from the scene of an accident to a waiting ambulance, carrying him on a uniform 3.00 kg stretcher held by the ends. The stretcher is 2.60 m long and the man’s center of mass is 1.00 m from Ann. How much force must Orin and Ann each exert to keep the man horizontal? a. Orin = 230 N, Ann = 388 N b. Orin = 201 N, Ann = 411 N c. Orin = 241 N, Ann = 377 N d. Orin = 141 N, Ann = 477 N e. None of the above
2. A person's arm is used for ergonomic studies. If the distance of the AB, BC, and CD segments are 35.0 mm, 28.0 mm, and 19.0 mm, respectively, and the model is holding a small 1.5-lb load on the distal metacarpals of her hand . Determine the magnitude and direction of the moment of force with respect to) to the shoulder joint to the carpus
A double-decker London bus (Figure 1) might be in danger of rolling over in a highway accident, but at the low speeds of its urban environment, it's plenty stable. The track width is 2.05 m. With no passengers, the height of the center of gravity is 1.45 m, rising to 1.73 m when the bus is loaded to capacity. What is the critical angle for the unloaded bus? What is the critical angle for the loaded bus?
To get up on the roof, a person (mass 70.0 kg) places 6.00-m aluminum ladder (mass 10.0 kg) against the house on a concrete pad with the base of ladder 2.00 m from the house. The ladder rests against a plastic rain gutter, which we can assume to frictionless. The center of ladder is 2.00 m from the bottom. The person is standing 3.00 m from the bottom. Find the normal reaction and friction forces on the ladder at its base.
Torque and the Two Conditions for Equilibrium 17. The arm in Figure P8.17 weighs 41.5 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force Ft, in the deltoid muscle and the force Fs exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. Figure P8.17