The conditions that the weight of a given assembly is very nearly independent of the type of the system (MB, BE, and FD) are a. ns >> 1 b. gs >> 1 C. gs >> ns >> 1 d. gs = ns
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- (a) Determine the reactions at A and E if P = 470 N. The reactions are positive if to the right or up, negative if to the left or down. (b) What is the maximum value which P may have for static equilibrium? Neglect the weight of the structure compared with the applied loads. 3.1 m E 4.5 m B 31 3290 N D 4.5 m PGiven force, mass, kinetic friction coefficient, and displacement, how will you find the change in KE? Let's say the force is 5 newtons, 3 kg mass, kf = 0.40, displacement is 8 meters.take m and k as ; m= 0.18 kg and k = 150 n/m
- From the given figure, determine the rectangular representation of the 500 N force. F = 500 N O a. F = -240 i+ 320j+ 300 k N O b. F = 240 i- 320j - 300 k N O c. F = 560i- 720 j- 20o k N O d. F = 420 i- 230j - 700 k NFor #1-4: Given : F₁= 200 N 30° above +x F₂= 200 N, 37° below +x 1. What are the components of F₁? a. x = 173.2 N, y = 100 N c. x = 17 N, y = 190 N b. x = 170 N, y = 90 N d. x = 1700 N, y = 1000 N 2. If the X component of F₂ is 159.7 N, what is its Y-component? a. -119 N b. 120.4 N d. 121.4 N c. -120.4 N 3. What is the magnitude and direction of the resultant force? a. 332.56 N 2.8° below +x b. 323.65 N 3.0° above +x 4. In what direction is F₂ heading? a. 37° below +x b. 35° below-x c. 36° above +x d. 53° below -X c.332.56 N, 3.5° below +x d. 332.56 N, 2.6° below-xΣF-a W = Fd parallel KE =-mv² v =v, +at v² – v? = 2a(x-x,) Fr = H,FN w = mg E, +W = E, GPE = mgh EPE = - kx? A C D B 11. A small block, with a mass of 4 kg, starts from rest at the top of the apparatus shown above. It then slides without friction down the incline, across the first level section, around the loop and then onto the final level section on the right. It then collides with a spring and compresses it, which momentarily brings the block to a stop. The maximum height of the incline is 5 m, the radius of the loop is 1.0 m and the spring constant is 120 N/m.
- The relationship between the number of variables needed to describe a system, n, and the number of degrees of freedom in the system, d, is: O n= d- 1. O n = 3 d. O n= d+ 1. O n= d.F = 300 N α = 12° a. Weight = ? b. Friction = ? (N = 393.8N) c. Resultant of F and N = ? m = 0 = 30° 70kg y X Ms=0.40 Mk=0.30Determine the force P required to move the plate at a constant speed of 3 mm/s.
- Express the 2 forces in CVN then determine the resultant force in N generated at point A which is located at (6,10,0) ft. 8ft C 8ft 6ft .... 200 Ib 100 Ib AGmail .l ? 9:58 PM 60% X H.W.jpg Determine the tension developed in each cord required for equilibrium of the 20-kg lamp. Determine the maximum mass of the lamp that the cord system can support so that no single cord develops a tension exceeding 400 N. |30° 45° F9. The body on the 30° incline is acted upon by a force P inclined at 20° with the horizontal. If P is resolved into components parallel and perpendicular to the incline and the value of the parallel component is 400lb, compute the value of the perpendicular component and that of P. P. 1800 N