(a) What is the minimum force of friction required to hold the system of the figure below in equilibrium? Let w, = 100 N and wa = 35.0 N. N (b) What coefficient of static friction between the 100 N block and the table ensures equilibrium? (c) If the coefficient of kinetic friction between the 100 N block and the table is 0.21, what hanging weight should replace the 35.0 N weight to allow the system to move at a constant speed once it is set in motion? W2

Consider the figure below. (Let w, = 150 N and w2 = 39.0 N.) W2 (a) What is the minimum force of friction required to hold the system of the figure above in equilibrium? N (b) What coefficient of static friction between the 150-N block and the table ensures equilibrium? (Enter the minimum acceptable coefficient of friction.) (c) If the coefficient of kinetic friction between the 150-N block and the table is 0.130, what hanging weight should replace the 39.0-N weight to allow the system to move at a constant speed once it is set in motion?

Consider the mechanical system shown in Figure 2 (a) Draw the free-body diagram (or force diagram) for this system at point P. (b) Construct the component equilibrium equations based on the first condition for equilibrium for the point P, i.e., use sum Fx=0 and sum Fy =0 . (c) If the tension force T1 =1165N, theta 1 =50.0^ and theta 2 =35.0^ what are the magnitudes of the tension force T2 weight W = mg ?

Consider the figure below. (Let w, = 150 N and w, = 50.5 N. 50.5 N.) W, W. (a) What is the minimum force of friction required to hold the system of the figure above in equilibrium? (b) What coefficient of static friction between the 150-N block and the table ensures equilibrium? (Enter the minimum acceptable coefficient of friction.) (c) If the coefficient of kinetic friction between the 150-N block and the table is 0.168, what hanging weight should replace the 50.5-N weight to allow the system to move at a constant speed once it is set in motion? N.

A pulley system is shown below. There is a single continuous rope that is 5 m long running from A, to B, to C, and then to D. At D, there is a block with a mass of 14 kg. Ignore the dimension of the pulley. Given a = 2.6 m and b = 0.733 m, b AQ L B C D a find the mass of the block at B for the system to be in equilibrium. Answer to three decimal places. mass B kg

Determine whether the block shown in the figure is in equilibrium and find the magnitude and direction of the friction force when 0 = 40° and P= 394 N. Given: μs = 0.20 and Uk = 0.15. 0 800 N 25° The block is in equilibrium. True The magnitude and direction of the friction force is

Consider the figure below. (Let w1 = 145 N and w2 = 40.0 N.) (a) What is the minimum force of friction required to hold the system of the figure above in equilibrium? N(b) What coefficient of static friction between the 145-N block and the table ensures equilibrium? (Enter the minimum acceptable coefficient of friction.)(c) If the coefficient of kinetic friction between the 145-N block and the table is 0.138, what hanging weight should replace the 40.0-N weight to allow the system to move at a constant speed once it is set in motion? N

a) Cables AC and BC are connected to lifting points A & B, and joined together at C as shown in Figure Q1a. The angle = 200 and angle B = 50°. If the tension in each cable is 3.75 KN, calculate the force (F) and the angle a required to maintain point C in static equilibrium. Give your answers for F in kilonewtons (kN) and the angle a in degrees to two decimal places. A 3 F α B O

The weightless strut in the figure below is not attached to the wall; it is prevented from falling only by friction. (Let w = 395 N, L = 5.15 m and h = 3.10 m.)   (a) Find the magnitude of the force of friction between the wall and the strut.(b) Find the normal force exerted by the wall on the strut.(c) Find the minimum coefficient of static friction.

A 75.0N block sits on a plane inclined 25.0° with the horizontal as shown below. The coefficients of friction between the block and plane are =0.200 and H-0.350. The block is pulled parallel to the incline with a force P as shown. a) What is the smallest force P that will keep the block from slipping down the plane? If the force P is any smaller the block will slip down the plane. b) What is the largest force P for which the block will not slide up the plane? If the force P is any larger the block will slip up the plane. 25.0°