Q5. A 50.4 N force is applied to keep a blok of 24.2 N on the side wall. The static and the kinetic friction coefficients are given as 0.60 and 0.40. Assume the blok is relased from stationary state, a. Does the block start to move? b. What force the wall apply to the block?

Q5. A 50.4 N force is applied to keep a blok of 24.2 N on the side wall. The static and the kinetic friction coefficients are given as 0.60 and 0.40. Assume the blok is relased from stationary state, a. Does the block start to move? b. What force the wall apply to the block?

Name: Q5. A 50.4 N force is applied to keep a blok of 24.2 N on the side wa
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: Q5. A 50.4 N force is applied to keep a blok of 24.2 N on the side wall. The static and the kineticfriction coefficients are given as 0.60 and 0.40. Assume the blok is relased from stationary state,a. Does the block start to move? b. What force the

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 10WUE: A puck of mass 0.170 kg slides across ice in the positive x-direction with a kinetic friction...

See similar textbooks

Similar questions

1. The pulley system below has a 4 to 1 mechanical advantage; for this problem you can assume an ideal pulley system with massless, frictionless pulleys. Suppose you use this pulley system to lift a 25 kg mass up 30 cm at a constant speed. A. What is the tension in the rope? B. How far will you have to pull the rope? F N
A tree contractor has been hired by a homeowner to remove a k damaged tree from a previous storm. The top of the tree broke off, leaving the trunk in the ground. The arborist will remove the tree by attaching a rope near the top and cutting the base close to the ground. The scenario is shown in the figure. 2 The distances in the figure are z = 14.7 m, h 1.45 m, h y = 5.66 m and x = 10.64 m. If the arborist pulls on the rope 1.. with a force of magnitude F 35.1 N, write the expression X for the torque T with respect to the base P of the tree using ijk unit vector notation, i i = T,i + Tyj + t;k where Tx, Ty» and Tz are the values of the torque components in the x-, y-, and z-directions, respectively. = N•m
Three forces act at point O as shown. Force F3lies in the x-y plane. Select the expression that denotes a unit vector in the direction of F1 . a. - 1/3 i - 2/3 j - 2/3 kb. - 1/3 i + 2/3 j + 2/3 kc. - 1/3 i + 2/3 j - 2/3 kd. - 1/3 i - 2/3 j + 2/3 k Determine the direction angles (α, B ,y ) for F₂ . a. (103ᵒ , 72.1ᵒ , 22.6ᵒ ) b. (103ᵒ ,108ᵒ , 22.6ᵒ )c. (76.7ᵒ , 72.1ᵒ ,157ᵒ ) d. (103ᵒ , 72.1ᵒ ,157ᵒ ) Determine the angle between F1 and F3 . a. 26.0ᵒ b. 132ᵒc. 90.0ᵒ d. 0
M R Suppose you are hanging out in your childhood tree house, which has a trapdoor with a weight on top of it. Your friend climbs up to the tree house and exerts a force F directly upwards at a distance R from the pivot. What is the closest distance from the pivot that you can place a weight of mass M to keep your friend out of the tree house? Assume the trapdoor is massless and the weight can be modeled as a point. Pick the correct answer FR Mg MG R Mg FR Fg MR F 2
8. A factory needs to move packages from one level to another using a ramp. They want to choose a material that has a specific coefficient of friction with the packages that will be sliding down the ramp. a) What problem could occur if the coefficient of friction were too high? Your answer: O Packages would go too fast and could break at the end of the ramp. O Packages could slow down too quickly and stop before the end of the ramp. O Packages could break the ramp because gravity would increase. O Packages could bounce off the ramp because normal force would increase.
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.
PHYSICS IS FUN! W Hanging Sign A sign has a mass of 1050 kg, a height h = 1 m, and a width W = 4 m. It is held by a light rod of length 5 m that is perpendicular to a rough wall. A guy wire at 23° to the horizontal holds the sign to the wall. Note that the distance from the left edge of the sign to the wall is 1 m. Suppose we rely upon friction between the wall and the rod to hold up the sign (there is no hinge attaching the rod to the wall). What is the smallest value of the coefficient of friction u such that the sign will remain in place?
Two coupled boxcars are rolling along at 2.5 m/s when they collide with and couple to a third, stationary boxcar.a. What is the final speed of the three coupled boxcars?b. What fraction of the cars’ initial kinetic energy is transformed into thermal energy?
A ladder of negligible mass composed of two ?-long rails that are hinged at the top, is placed on top of a frictionless floor. A metal bar, connecting both rails halfway up the ladder is placed so that the two rails make an angle of ?= 44.0◦ at the apex. Lastly, a ? = 4.40[kg] block is placed 2/3 of the way up the ladder, as shown.A. What's the magnitude of the tension in the metal bar?B. What's the magnitude of the normal force exerted on the bottom right side of the ladder?C. What's the magnitude of the normal force exerted on the bottom left side of the ladder?D. What's the magnitude of the force the right side of the ladder exerts on its left side?
A. Explain why placing your hands behind your head rather than placing them on your stomach makes sit-ups more difficult. B. Explain why it is easier (it requires a smaller force) to open a large jar than a small one.
A teacher wants to rearrange his classroom by moving his desk (90 kg) out of position. The teacher pulls the desk with a constant force of 114 N at an angle θ with respect to the horizontal over a distance of 5.0 m. If the desk starts from rest and reaches a speed of 3.0 m/s. Determine the angle made by the force applied by the teacher. a. 40° b. 45° c. 30° d. 35° e. 500
Which of the following scenarios describe objects in static equilibrium? Check all that apply. A. A book on a desk.B. Orange juice on a shelf in the refrigeratorC. A parked carD. A hockey player skating on ice