Machines: The mechanical press is used to crush small objects at E. If the vertical force P = 750 N is applied to the end of the handle, determine (A) the vertical force on the object at E, F, (B) the reaction force at pin A, RA, and (C) the reaction force at pin B, RB- 200 mm B -20° 60° 400 mm 159 P

Force between A and B: 200lb Angle on D: 35 deg Angle on C: 50 deg

Q1) A man is pulling a spring of stiffness coefficient 8 Ib/in by his hand with the entire arm held horizontally rotating about shoulder joint O; this force acts at the 21° angle is shown. Determine the force exerted by the deltoid muscle on the upper arm at A and x- and y- components of the force reaction at the shoulder joint. The weight of the upper arm Wu = 4.1 Ib, the weight of the lower arm W1 2.4 Ib, and the weight of the hand WH= 0.9 Ib; all these weights act at the locations shown in the figure. the spring extended 1 in only as shown in figure 1. A tensile force in the deltoid muscle prevents the arm from A- 8 Ibin Equilibrium x-1 in Deltoid muscle Fo A YW, YW -5.2 16.5 25.4 Figure 1

Needs Complete typed solution with 100 % accuracy.

A string has a tension T = 5.3 Newtons and connects the two blocks of m1 =3.0 kg and m2 =11.7 kg. Find the value of force F in Newtons assuming the friction is negligible. (only numbers in the box)

1)→ In the figure-below, find-the-forces-in-members AD, ED, and AB.-Can-the-forces-in-all-the- members of this-truss be found-from-statics equations alone? Why-or-why not? 50 lb 2 ft F G -3 ft- E A 3 ft. D -3 ft- B 100 lb 80 lb с