the system blocks shown below is in equilibrium, the weight of block A is 10 kN and for block B is 35 kN. The coefficient of friction between A and surface is 0.2 and between two block A and B is 0.15. Answer :the following P=40KN
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- The coeffient of static friction between the uniform bar AB of weight W and the ground is 0.45. Find the smallest angle and the corresponding force P that would initiate simultaneous tipping and sliding of the bar.the system blocks shown below is in equilibrium, the weight of block A is 10 kN and for block B is 35 kN . The coefficient of friction between A and surface is 0.2 and between two block A and B is 0.15. Answer :the following P=40KN Lë 5 The value of friction force between two * blocks is 5.6 kN 6.4 kN 4.8 kN Non above-mentionedThe figure shows a pair of pin-jointed gripper-tongs holding an object weighing 2000 N. The coefficient of friction (u) at the gripping surface is 0.1. XX is the line of action of the input force and YY is the line of application of gripping force. If the pin- joint is assumed to be frictionless, the magnitude of force Frequired to hold the weight is F Pin Y- 2000 N 150mm ww 00
- The 69-kg crate is stationary when the force P is applied. Determine the resulting acceleration of the crate if (a) P = 0, (b) P = 255 N, and (c) P = 503 N. The acceleration is positive if up the slope, negative if down the slope. P 20° 69 kg Hg = 0.29 μk = 0.21the system blocks shown below is in equilibrium, the weight of block A is 10 kN and for block B is 35 kN . The coefficient of friction between A and surface is 0.2 and between two block A and B is 0.15. Answer :the following P=40KN The value of friction force between * block A and its surface is 4.0 kN 5.5 kN 6.2 kN O Non above-mentionedWhat is the largest moment that can be applied without causing motion? The disk is 50 lb and the bar is 25 lb. The static friction is 0.6. Express your answer in in-lb (inch-pounds) with three significant figures. 5 in (5) force TOV M U from moving by exerting a horize 20 in 30° -ooges di 081 box of 08 styis m
- the system blocks shown below is in equilibrium, the weight of block A is 10 kN and for block B is 35 kN . The coefficient of friction between A and surface is 0.2 and between two block A and B is 0.15. Answer :the following P=40KN The coefficient of friction between * block B and surface is 0.24 O 0.63 0.56 O 0.37Blooka A ano B weign 30 lo and 50 lo, respectively. µ = 0.5 20 - HBA = 0.6 HẠC = 0.4 D If the weight of blcok Dia to be grestest witnout csusing motion, using the coceffioieta of atetio friotion inciceted, whet is the frictional force (Ib) between blooka A and B? Seleot the oorreot reoponoe 0.60 47.17 15.72 40.33 26.20 21.25 43.67 1275 36.04 17.25 5.81 S2 O oSituation 3 Blooke A ana B weign 30 lo and 50 lo, respectively. B µ = 0.5 20 HBA = 0.6 C HẠC = 0,4 D If the weight of blook Dia to be grestest witnout osueing motion, ueing the coeffioiente of atetio friotion inciceted, whet is the friotional foroe (Ib) between blook A and the floor C? Seleot the corect reoponoe 1275 O 21.25 5.81 40.33 15.72 0.60 43.67 36.04 47.17 26.20 S2 17.25 O O
- A 250 lb refrigerator is being pushed. You do not know what force P should be applied. The coefficient of static friction between the refrigerator and floor is point G. 0.4. The center of gravity of the refrigerator is at = d2 ++ d2 → F1 d3 d1 d4 Values for the figure are given in the following table. Note the figure may not be to scale. Variable Value di 4.5 ft d2 1.5 ft d3 2.5 da 3.5 a. Determine the force P that is needed to overcome friction. b. Determine the location of the normal force x measured from the center of the refrigerator if the force P from part a is applied. c. Determine the minimum force P that is required to tip the refrigerator. d. Will the refrigerator slip or tip first? Round your final answers to 3 significant digits/figures.Q3. As shown on the right in image below, the force Facting on the box varies with displacement s, and the coefficient in the image, C = 14. Determine the work done by force Fto the box when the box has displaced s = 1.9 m. Please pay attention: the numbers may change since they are randomized. Negative sign must be included if the work done is negative. Your answer must include 2 places after the decimal point, and proper SI unit. F (N) F 5 3 S 4 C s (m) 1 2The crate, which has a mass of 140 kg, is subjected to the action of the three forces shown in the figure. If it is originally at rest, determine the friction force when P1 = 750 N, P, = 900 N, P3 = 500 N and 0 = %3D %3D 25°. Assume the coefficient of kinetic friction between the crate and the surface is Hk = 0.40. P2 P1 P3 Select one: a. 260.15 N b. 161.84 N c. 315.34 N d. 457.76 N