300 mm- м 400 mm в 125 mm

The boxes are at rest. The pulley is massless. Fpull makes an angle 0 with respect to the incline. (i) Draw free body diagrams for m, and m, for the situation outlined in part (ii). (ii) What maximum force, Foull, Can you apply to m, and have it remain at rest? In terms of the given information. Just give the equation (or equations) needed to solve for the force. Do not simplify or isolate for Fpull, but make sure it is the only unknown. pull Given information: B (angle of incline with horizontal) e (angle Fpull makes with incline) m, (mass of box 1) m2 (mass of box 2) H (distance m, is above the ground) • H, (static friction coefficient, incline and box 1) He (kinetic friction coefficient, incline and box 1) m1 m2

The needle-nose pliers are used to either cut objects at location A or grip objects at location B. Compute (a) the cutting force at A and (b) the gripping force at B in terms of the applied force F. Determine the magnitude of the pin reaction at O in both cases. Neglect the effects of the slight opening of the jaws to accommodate the gripped items. B Answers: 66 mm 14 mm A O (a) The cutting force at A: 103 mm FA i (b) The gripping force at B: FB = i F F F The pin reaction at O: Fo- i F The pin reaction at O: Foi F F

The 250 lb uniform crate (center of gravity at G) shown in the figure must be moved without tipping. The applied force P is horizontal. 1.5 ft 1.5 ft Determine: a. The largest coefficient of static friction between the crate and the floor that allows the crate to slide and 2.5 ft P. not tip 4.5 ft b. The corresponding magnitude of P 3.5 ft Include all needed FBD's to solve, and put units on your answers.

ASAP

The uniform bar and the homogeneous cylinder each have a mass of 24 kg. The static coefficient of friction is μs at A, B, and C (the three points of contact). (a) Assuming equilibrium, calculate the normal and friction forces at A,B and C. (b) What is the smallest value of μs necessary for wquilibrium?

Free Body Diagram

The uniform rod BC weighs 32.2 lb. The rod is connected to the frame D by a frictionless pin C and a cord AB as shown. Calculate the maximum value of the applied force P for which rod BC will not “rise up”.

Do not give answer in image and hand writing

End B of the uniform 2.7-kg bar AB is connected to a small roller that moves in a horizontal slot. The other end of the bar is pinned to the homogeneous 1.8-kg disk that rolls without slipping on the vertical surface. The spring attached to A has a free length of 0.3 m and a stiffness of 58 N/m. After the system is becomes horizontal. Determine the magnitude of the force P that acts on the bar at B. 2.1 m 0.24 m 0.9 m www 1.8 kg 1.5 m 2.7 kg P