5 ft B N 1.5 f

Each problem requires a proper FBD and separate kinematic diagram. 1. The wheel has a weight of 20 lb and a radius of gyration of kg = 0.75 ft. If the coefficients of static and kinetic friction between the wheel and the surface are 4 = 0.5 and 4 = 0.35, find the greatest angle, 0 , that the slope can have without the wheel slipping. 1.25 ft-

Calculate the maximum force P that can be applied without causing any motion for the given coefficients of static friction. The weight of block A is 20 lb. and that of B is 10 lb. MB = 0.4 2 ft. B A 3 ft. MA=0.5 P MD=0.3 D Pc=0.35 C

The uniform concrete block in (Figure 1) has a weight of 300 lb. The coefficients of static friction are μA = 0.2, μB = 0.3, and between the concrete block and the floor, μ = 0.4.  A) Determine the smallest couple moment that can be applied to the 180-lb wheel that will cause impending motion. Express your answer to three significant figures and include the appropriate units.

Need only a handwritten solution only (not a typed one).

Submit correct and complete solutions. Please provide Explanation. Provide step-by-step detailed explanations.

Consider (Figure 1). The cord is attached to the 36-lb block, and the coefficients of static friction are HB = 0.2 and μp = 0.3. Figure M 1.5 ft B 3 ft -1.5 ft- D C < 1 of 1 Part A Determine the smallest couple moment which can be applied to the 24-lb wheel that will cause impending motion. Express your answer in pound-feet to three significant figures. VAΣo↓↑ vec M = Submit Provide Feedback Request Answer A ? lb-ft

B4

Solve each of the following problems indicated below. Present your complete-detail solution including the free- body diagrams. Box your only final answer.

A 250-lb block rests on a horizontal surface, as shown. The coefficient of static friction is 0.25. Calculate the maximum value of the horizontal force P so that neither sliding nor tipping will occur. 2'-0" W = 250 lb P. 4' 6" 3'-0"