Problem 1. The coefficient of static friction between Box A with a mass of 220 kg and the inclined surface is 0.10. A rope, tied to the box, passes over a cylinder and the coefficient of static friction between the rope and the fixed cylinder is 0.05. If a woman pulls on the free end of the rope, the force the woman must exert on the rope to cause the box to start moving up the inclined surface is *

Problem 1. The coefficient of static friction between Box A with a mass of 220 kg and the inclined surface is 0.10. A rope, tied to the box, passes over a cylinder and the coefficient of static friction between the rope and the fixed cylinder is 0.05. If a woman pulls on the free end of the rope, the force the woman must exert on the rope to cause the box to start moving up the inclined surface is *

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

u = 0.75 m = 300 kg teta = 27 degrees
If blocks A and B has the total mass of 250 grams with a ratio (A:B) of 2:3, what will be the smallest force F needed to cause motion of block B if P=300 N? Let the static friction of the surfaces between A & B and B & C will be 0.25 and the surfaces between the ropes and pegs D & E be 0.35.
What is the equivalent static force (in kips) if pseudo-acceleration is 2.34g and the weight of the vibrating structure is 75 kips?
Ross and Rachel are fighting if they were on a break. Ross is trying to get his stuff weighing 150. N placed on an inclined plane by pulling it upwards parallel to the inclined plane with 150. N force. However, Rachel is trying to stop Ross by exerting 50.0 N perpendicular to the inclined plane. The coefficients of friction between the box and the incline are = 0.450 and Uk=0.350. Which of the following shows the correct equilibrium equation in the direction parallel to the inclined surface? 50 N FRIENDS A. EF = 150- W sin(30) - f + 50sin (30) = 0 B. EF = 150-W cos(30) + N - f = 0 C. EF = 150-W cos(30) - f = 0 D. EF = 150W sin(30) - f = 0 150 N
A 2.4 m ladder rests on a vertical wall as shown in the figure. The ladder has seven rungs and the rungs are spaced 0.30 m apart, and the top and bottom rungs are 0.30 m from their respective ends of the ladder. Surfaces at A and B both have the same coefficient of friction. If a worker weighs 630 N and stands on the middle rung, determine the minimum value of the coefficient of friction so that the ladder does not slide. Neglect the weight of the ladder.
Solve for the force P required to imprend motion in the following situation: 1. If force applied to block horizontally. 2. If force applied to block downward at 30° with the horizontal. 3. What should be the minimum force P and its angle from the horizontal is required to start motion?
A small boat weighing 40 LT has a submerged volume of 875 ft3 when traveling at 20knots in seawater. (ρ = 1.99 lb-s2/ft4 ; 1 LT = 2240 lb) a. Calculate the magnitude of the hydrostatic support being experienced by boat.b. What other type of support is the boat experiencing?c. Calculate the magnitude of this other type of support.d. What will happen to the submerged volume of the boat if it slows to 5 knots? Explain your answer.
A construction worker with mass m= 55.0 kg stands 2.00 m away from the wall on a 6.00-m, homogeneous, uniform beam, as shown in the figure below. The mass of the beam is 40.0 kg. The force exerted on the beam by the wall has the following components
A horizontal bar, 11 ft long and of negligible weight, rests on rough inclined planes as shown. The coefficient of friction for all contact surfaces is 0.27. What is the normal force at contact point A? How close to A may the 120lb force be applied before motion impends? 120 Ib 210 lb 2.50 ft 2 56 11 ft
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A 130-lb cabinet is mounted on casters that can be locked to prevent their rotation. The coefficient of static friction between the floor and each caster is 0.30. Consider h = 32 in. 24 in. Determine the magnitude of the force P required to move the cabinet to the right if the casters at B are locked and the casters at A are free to rotate. (You must provide an answer before moving to the next part) If the casters at B are locked and the casters at A are free to rotate, the magnitude of the force required to move the cabinet to the right is Ib+