A daredevil stunt is to cross from one cliff to another through a “high wire” strung horizontally between two cliffs 10.0 m apart. The sag in the rope when she is at the midpoint is 10.0° from the horizontal axis, as shown. a. Show the FBD of the stunt as she hangs at rest at this point? b. If her mass is 50.0 kg, what is the tension in the rope at this point?

A daredevil stunt is to cross from one cliff to another through a “high wire” strung horizontally between two cliffs 10.0 m apart. The sag in the rope when she is at the midpoint is 10.0° from the horizontal axis, as shown. a. Show the FBD of the stunt as she hangs at rest at this point? b. If her mass is 50.0 kg, what is the tension in the rope at this point?

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 114AP: A 15-kg sled is pulled across a horizontal, snow-covered surface by a force appiled to a rope at 30...

See similar textbooks

Similar questions

A stubborn dog is being walked on a leash by its owner. At one point, the dog encounters an interesting scent at some spot on the ground and wants to explore It in detail, but the owner gets impatient and pulls on the leash with force along the leash. (a) What is the magnitude of the pulling force? (b) What angle does the leash make with the vertical?
A student’s backpack, full of textbooks, is hung from a spring scale attached to the ceiling of an elevator. When the elevator is accelerating downward at 3.8m/s2 , the scale reads 60 N. (a) What Is the mass of the backpack? (b) What does the scale read if the elevator moves upward while speeding up at a rate 3.8m/s2 ? (c) What does the scale read if the elevator moves upward at constant velocity? (d) If the elevator had no brakes and the cable supporting it were to break loose so that the elevator could fall freely, what would the spring scale read?
A 0.400-kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/s. (a) What is the tension in the pendulum cable at this point if the pendulum is 80.0 cm long? (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? (c) What is the tension in the pendulum cable when the pendulum reaches its highest point?
A 15-kg sled is pulled across a horizontal, snow-covered surface by a force appiled to a rope at 30 degrees with the horizontal. The coefficient of kinetic friction between the sled and the snow is 0.20. (a) If the force Is 33 N, what is the horizontal acceleration of the sled? (b) What must the force be in order to pull the sled at constant velocity?
A block resting on a plane inclined at an angle 36o from the horizontal is being held in place by steel cables a, b, and c as shown in the figure below. The tension in cable b is 75.0 N. Note that cable a is parallel to the surface of the incline and that cable b is perfectly horizontal. a. determine the normal force N and the force due to gravity ??.b. What is the mass of the block in kilograms?
Apainter stands on a horizontal uniform scaffold hung by its ends from two vertical ropes A and B, 6m apart. The scaffold weighs 200N. The tension in A is 750 N and that in B is 250 N. a. What is the weight of the painter? b. How far from A is he standing?
Two blocks are on an incline plane as shown. Block A has a mass of 20k g and Block B has a mass of 35k g. The incline angle is 20º. a. What is the minimum coefficient of friction to prevent the blocks from slipping? Assume the coefficient of friction between the blocks is four time the coefficient of friction between the block and the plane. b. What is the tension in the rope?
an adventurous archeologist crosses between two rocks cliffs, with a ranging river far below, by slowly going hand over hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope. The rope will break if the tension in it exceeds 3.00 x 10⁴N, and our heros mass is 81.6 kg. a. if the angle that the rope makes with the cliff is 75°find the tension in the rope. b. What is the smallest value the angle can have if the rope is not to break?
A 1.30-kg toaster is not plugged in. The coefficient of static friction between the toaster and a horizontal countertop is 0.350. To make the toaster start moving, you carelessly pull on its electric cord. a. For the cord tension to be as small as possible, you should pull at what angle abive the horizontal? b. With this angle, how large must the tension be?
A painter stands on a horizontal uniform scaffold hung by its ends from two vertical ropes A and B, 6m apart. The scaffold weighs 200N. The tension in A is 750 N and that in B is 250 N. a. What is the weight of the painter? b. How far from A is he standing?
Zach, whose mass is 80 kg, is in an elevator descending at 10 m/s. The elevator takes 3.0 s to brake to a stop at the first floor. a. What is Zach’s apparent weight before the elevator starts braking? b. What is Zach’s apparent weight while the elevator is braking?
43. An art student is designing a funky hanging sculpture in which three identical flying saucer sculptural pieces will be suspended from identical wires, as shown, from the gallery ceiling. If each wire is rated at holding a maximum tension of no more than 90.0 N, what is the maximum mass for each piece of sculpture? A. 3.06 kgB. 9.12 kgC. 30.0 kgD. 270 kg