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- The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the smallest force P and the corresponding angle that would cause impending sliding of the block. The angle of static friction between the block and the ground is s.A 1.1-kg disk A is placed on the inclined surface. The coefficient of static friction between the disk and the surface is 0.35. Is the disk in equilibrium if P=5.5N and =30?The force P applied to the brake handle enables the band brake to reduce the angular speed of a rotating drum. If the tensile strength of the band is 3800 lb, find the maximum safe value of P and the corresponding braking torque acting on the drum. Assume that the drum is rotating clockwise.
- the system blocks shown below is in equilibrium, the weight of block A is 10 kN and for block B is 35 kN. The coefficient of friction between A and surface is 0.2 and between two block A and B is 0.15. Answer :the following P=40KN B The value of friction force between the * block B and it's surface is 25 kN 35 kN 15 kN Non above-mentioned * The system is in Equilibrium Impending to motion KinematicLearning Goal: The crate shown is held against wedge B by a spring. The spring is 93.5% of its original uncompressed length 1 = 2.00 m, and the spring constant is given as k = 1350 N/m. The coefficient of static friction at all contacting surfaces is μs = 0.100. The mass of the crate is m = 30.0 kg. The angle is 0 = 12.0°. Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move.(Figure 1) Figure B A L. 1 of 1 Part A - Determining the normal force exerted by the crate on the wedge Determine the normal force No that the crate exerts on the wedge when the system is at rest. Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) No = 558 Submit Previous Answers μA X Incorrect; Try Again; 5 attempts remaining P = 230 Part B - Finding the smallest horizontal force P to move the crate upward Submit Determine the magnitude of the smallest horizontal force P that is necessary to begin moving…The Figure Q2 shows a ball and block with masses M1=10kg and M2, respectively. The block and ball are connected with a cable and pulley system. The coefficient of static friction for all contacting surface is 0.3. i) Determine the range of the mass of block so that the system is in M1 = 10 Kg equilibrium. ii) Determine the tension in the cable. M2 Hs= 0.3 Comment on your answer at question 2(i). 75%
- The controlling force curve of a spring controlled governor is a straight line. The weight of each governor ball is 40 N and extreme radii of rotation are 10 cm and 17.5 cm. If the values of the controlling force at above radli are 205 N and 400 N respectively and friction of mechanism is equivalent to 2.5 N at each ball. Find The extreme equilibrium speeds of the governor. (1) The equilibrium speed and coefficienct of insensitiveness at a radius of 15 cm1. A uniform ladder of mass m and length is leaning at rest against a wall at an angle 0. The coefficient of static friction between the floor and the ladder is μ5₁, and that between the wall and the ladder is Ms2. (a) Draw an FBD of the ladder when it is at rest. (b) Find out the measure of in terms of usi and μs2. (Hint: Consider torque and rotational equilibrium) (c) What is the trajectory, i.e., path of motion, of the center of the ladder as it slides down? (d) Given that the instantaneous speed of the top of the ladder is VÀ at some moment as it slides down, what are the speeds of the other end and the center of the ladder at the same moment? A 2. A ring with mass m is attached to a string. The string holds a block M as well through a pulley system. m is moving downward with an acceleration a' relative to the string. What is the friction between the ring m and the string in terms of g? The pulley and string are both ideal. mo MFor the problem related to Fundamental.6 sketches of the system showing: • the respective velocity and acceleration and the frame of reference considered • the forces acting on the system of considered, in other words, a free body diagram (FBD) are mandatory. Their absences will automatically make the problem false. F The 77-kg man pushes on the 120-kg crate with a horizontal force F. The coefficient of static friction between the man's shoes and the surface is 0.82. What must be the coefficient of kinetic friction between the crate and the surface if we observe an acceleration of the crate of 2.1 m/s²? Type your answer in the cell below.
- Open with Google Docs The homogeneous semicylinder rests on a horizontal surface and is subjected to the force P applied to a cord firmly attached to its periphery. The force P is slowly increased and kept normal to the flat surface of the semicylinder. If slipping is observed just as 0 reaches 40°, determine the coefficient of static fric- tion u, and the value of P when slipping occurs. B 3.20 cm Q5: The homogeneous block weights 250 N. Determine the value of P for which the block 30 cm in equilibrium, the coefficient of friction is 0,3 between the plane and the block. 15 cm 10% 10 cm (20 Degree)The system shown is in static equilibrium and motionless. • The force "P" is at the maximum magnitude that will not initiate motion. NOTE: Submitted responses shall be to 4 significant figures. Do NOT use scientific notation. Find: 1. The magnitude of weight of Block-A is 2. The magnitude of internal force in the rope is N. _N. 3. The magnitude of normal force between Block-A and Block-B is N. 4. The magnitude of friction force between Block-A and Block-B is N. 5. The magnitude of normal force between Block-B and the Ground is 6. The magnitude of friction force between Block-B and the Ground is 7. The magnitude of force P is_N. _N. N. A 100 kg 30° H, = 0.30 200 kg B P -Hy = 0.20