Situation 2. A 500 N block is resting on an inclined plane. See figure below. coefficient of static friction, ug = 0.3, coefficient of kinetic friction, Hx = 0.2 %3D P. us = 0.3 KA = 0.2 0=30° 7. Find the value P that will still make the block in equilibrium condition. а. 382 N b. 71 N с. 110 N d. 279 N

The 8-kg block A is attached to link AC and rests on the 12-kg block B. Knowing that the coefficient of static friction is 0.2 between all surfaces of contact and neglecting the mass of the link. с OA B Draw the FBD(s) for block A and block B. -50 N

Determine the minimum value of weight W which may be applied without causing the 50-lb block to slip. The coefficient of static friction between the block and the plane is µ; = 0.2, and between the rope and the drum D µ3 = 0.3. W 45°

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.

1. Two blocks are connected by an ideal string that passes over a pulley. Both lie on a smooth, frictionless inclined surface. The lean angle for the M1 is 30 degrees and the lean angle for the M2 is 60 degrees. Draw the free body diagram of the system. a. Determine what is the acceleration of the system and the tension in the string if M1 = 5 kg and M2 = 3 kg. b. What if there was a coefficient of friction that was 0.47 for both masses? How does acceleration and tension change?

QUESTION 5 A 260 kg man climbs a 10 m, 40 kg ladder successfully to its top. The ladder in net at 60 degrees between the ladder and the flat ground. The contact between the ladder and the vertical wall is frictionless. What is the smallest value of static friction between the ladder and the floor that would allow him NOT to slip? O a. 0.50 Ob. 0.55 Oc.0.60 Od.0.05 O.0.70 QUESTION 6 A 2000 kg beam is attached to a wall at the beam's left end by a hinge to the wall. The beam is supported by a cable anchored in the wall and attached to the right end of thee 20 m beam. The cable is attached to the beam making a 40 degree angle between the horizontal beam and the cable. What must the tension in the cable be? O a. 8762 N O b. 10540 N O c. 12793 N Od. 13647 N Oe. 15246 N

A 2.00 [kg] brick is pushed by a 10.0 [N] force against a rough wall with coefficient of static friction ?. What should be the minimum coefficient of friction so that the block will not fall

1. The man pushes against the stack of four uniform boxes each weighing 20 lb. If P = 10 lb, determine if the boxes (both individually or as a stack) will slip or tip. The coefficient of static friction between each box is μs = 0.6 and between the floor and the bottom box is μ² = 0.4. P 1.5 ft 1.5 ft 5.5 ft 1.5 ft -2 ft- 1.5 ft

Q.1 A. This figure shows a body on 20° inclined plane. The weight of the body 80 N. Resolve this force at point O into component parallel and perpendicular to the inclined plane (find W; and W;). Solution draw is required. 20 B. Choose between the brackets W= 80 N

4. The force F has a magnitude of 500 lb and acts along the line AM, where M is the midpoint of the vertical side OB of the parallelepiped. Express F as its magnitude times the appropriate unit vector and determine its x-, y-, and z-scalar components. B M 0 10" F-500 lb 16" 16" A