CM4: A 58 kg circus performer hangs from a bar suspended from a ceiling as shown in the figure. If the bar masses 12 kg (and its weight acts at its center) and has a length of 1.4 m, what is the tension T₂ in the rope? The rope is attached 0.85 m along the bar.

Fundamentals of Physics, 11th Edition, Custom WileyPLUS Course for West Help System Announcements PRINTER VERSION BACK NEXT Chapter 10, Problem 045 The body in the figure is pivoted at 0, and two forces act on it as shown. If r = 2.52 m, r2 = 2.58 m, F = 5.18 N, F = 5.56 N, 8, = 52.0, and 82 = 42.0°, what is the net torque about the pivot? 12 Number Units the tolerance is +/-5% LINK TO TEXT LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM VIDEO MINI-LECTURE Question Attempts: 0 of 5 used SAVE FOR LATER SUBMIT ANSWER

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 tree 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 40 kg, 5.0-m-long beam is supported by, but not attached to, the two posts A and B in the figure. A 20 kg boy starts walking along the beam and stops 1.2 m from the right end of the beam. The beam does not tip. A B 3.0 m a) Draw a fully labelled force diagram for the beam. b) Calculate the magnitude of the force exerted by the post B on the beam.

Calf muscle Lower leg bones B A C d AB A- dBC Ꮎ B The top left figure shows an anatomical structure in the lower leg and foot that are involved in standing on tiptoe, with the heel raised slightly off the floor so that the foot effectively contacts the floor only at point C. The calf muscle pulls on the foot at point A, which is rotating around point B where the foot contacts the lower leg bones. We want to compute the pulling force FA of the calf muscle necessary for the person to stand on tiptoe as well as the force FB on the lower leg bones from the foot. For simplicity we will assume that the points A, B and C lie on a single line as shown on the simplified diagram on the right. Assume distance dAB = 5.00 cm, distance dBC = 15.0 cm, the angle between the floor and the foot is 0 = 10.0°, and the person's mass m = 80.0 kg. We will neglect the weight of the foot. a) Draw a diagram showing the forces acting on the foot. (1 point) b) Assuming rotational equilibrium compute the calf…

> 2 A 0.102 kg remote control 24.0 cm long rests on a table, as shown in the figure(Figure 1), with a length L overhanging its edge. To operate the power button on this remote requires a force of 0.360 N Figure W #3 E C $ 4 R I % 1 of 1 5 T > C G Search or type URL 6 Part A How far can the remote control extend beyond the edge of the table and still not tip over when you press the power button? Assume the mass of the remote is distributed uniformly, and that the power button is 1.41 cm from the overhanging end of the remote. L= Y Provide Feedback Submit MacBook Pro D [ΫΠΙ ΑΣΦ U & 7 Request Answer U * 00 8 - + ( 9 K ? O ) O cm P 7 + 13 { 11 Next > 11 de

A monkey of mass m = 10.0 kg is holding on to two vines each of length l = 3.00 m. The vines form an angle with the horizontal of 40.0 degrees (see figure). The monkey is not moving and the vines are considered massless and not stretchable.   a. What is the distance d between the mounting points of the vines at the top? b. Draw a free body diagram of the monkey and indicate all forces.

QS In what direction does the tension force always point? Q9 Why is the tension force always a pull and never a push? Q10 Tension is transmitted through a rope or cable by forces acting on both ends of the rope or cable. Why do we not identify (or give different labels to) the tension force on each end separately? Perpendicular to a Surface: Normal Force, FN Activity 4 A book resting on a table does not move. According to ewton's First Law, the net force on the book must be zero since the book is not moving. The force that explains why books do not fall through tables is called the normal force FN. It is a perpendicular contact force exerted by a surface. In the drawing at the right, a book is sitting on the table. The book is not moving, so the net force on it must be zero. FN Fg Q11 How does the table “know" how much normal force to exert as the weight of the object placed on top of it changes?

A 1500 kgkg steel beam is supported by the two ropes shown in (Figure 1). Calculate the tension in the rope. The rope can support a maximum tension of 8300. Is this rope strong enough to do the job? Choose the correct answer and explanation. No. The tension in the ropes exceeds the maximum value, the ropes will break. Yes. The tension in the ropes exceeds the maximum value, but since we have two ropes they can support the beam without being broken. Yes. The tension in the ropes does not exceed the maximum value, the ropes will not break. No. The tension in the ropes does not exceed the maximum value, but since the ropes are not vertical the actual maximum tension they can support is lower and they will break.

In the boom- cable set-up as shown in the figure, determine the tension in the cable and the force exerted on the boom, for the equilibrium of the system.