As shown in the figure, a 10 m long bar is attached by a frictionless hinge to a wall and held horizontal by a light rope that makes an angle e = 49° with the bar. The bar is uniform and weighs 66.5 N. What distance x from the hinge should a 10 kg mass be suspended for the tension in the rope to be 150.0 N? Report your answer to 1 significant figure 10.0 kg

As shown in the figure, a 10 m long bar is attached by a frictionless hinge to a wall and held horizontal by a light rope that makes an angle e = 49° with the bar. The bar is uniform and weighs 66.5 N. What distance x from the hinge should a 10 kg mass be suspended for the tension in the rope to be 150.0 N? Report your answer to 1 significant figure 10.0 kg

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 34P: In order to get his car out of the mud, a man ties one end of a rope to the front bumper and the...

See similar textbooks

Similar questions

In order to get his car out of the mud, a man ties one end of a rope to the front bumper and the other end to a tee 15 m away as shown below. He then pulls on the center of the rope with a force of 400 N, which causes its center to be displaced 0.30 m, as shown. What is the force of the rope on the car?
A stepladder of negligible weight is constructed as shown in Figure P10.73, with AC = BC = = 4.00 m. A painter of mass m = 70.0 kg stands on the ladder d = 3.00 m from the bottom. Assuming the floor is frictionless, find (a) the tension in the horizontal bar DE connecting the two halves of the ladder, (b) the normal forces at A and B, and (c) the components of the reaction force at the single hinge C that the left half of the ladder exerts on the right half. Suggestion: Treat the ladder as a single object, but also treat each half of the ladder separately.
Check Your Understanding A 400.0-N sign hangs from the end of a uniform strut. The strut is 4.0 m long and weighs 600.0 N. The strut is supported by a hinge at the wall and by a cable whose other end is tied to the wall at a point 3.0 m above the left end of the strut. Find the tension in the supporting cable and the force of the hinge on the strut.
Is it possible to rest a ladder against a rough wall when the floor is frictionless?
A stepladder of negligible weight is constructed as shown in Figure P10.73, with AC = BC = ℓ. A painter of mass m stands on the ladder a distance d from the bottom. Assuming the floor is frictionless, find (a) the tension in the horizontal bar DE connecting the two halves of the ladder, (b) the normal forces at A and B, and (c) the components of the reaction force at the single hinge C that the left half of the ladder exerts on the right half. Suggestion: Treat the ladder as a single object, but also treat each half of the ladder separately. Figure P10.73 Problems 73 and 74.
Check Your Understanding For the situation in described in Example 12.5, determine the values of the coefficient s of static friction for which the ladder starts slipping, given that is the angle that the ladder makes with the floor.
A uniform horizontal strut weighs 400.0 N. One end of the strut is attached to a hinged support the wall and the other end of the strut is attached to a sign that weighs 200.0 N The strut is also supported by a cable attached between the end of the strut and the wall. Assuming that the entire weight of the sign is attached at the very end of the s find the tension in the cable and the force at the hinge of the strut.
A wooden door 2.1 m high and 0.90 m wide is hung by two hinges 1.8 m apart. The lower hinge is 15 cm above the bottom of the door. The center of mass of the door is at its geometric center, and the weight of the door is 260 N, which is supported equally by both hinges. Find the horizontal force exerted by each hinge on the door.
If an odd number of forces act on an object, the object cannot be in equilibrium.
Under what conditions can a rotating body be in equilibrium? Give an example.
Check Your Understanding A 50-kg person stands 1.5 m away from one end of a uniform 6.0-m-long scaffold of mass 70.0 kg. Find the tensions in the two vertical ropes supporting the scaffold.
. A tightly stretched horizontal “high wire” is 36 m long. Itsags vertically 2.1 m when a 60.0-kg tightrope walker standsat its center. What is the tension in the wire? Is it possibleto increase the tension in the wire so that there is no sag?