The 100 [kg] block in the figure takes 6.0 [s] to reach the floor after being released from rest. What is the mass of the block on the left? The pulley is massless and frictionless. m 100 kg 1.0 m
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- ore ge.co TED CCU... ect n ol.sona- om bject Pool epartment... 24,919 3 9. A mass m₁ = 19.0 kg is connected by a light string that passes over a pulley of mass M = 14.0 kg to a mass m₂ = 9.50 kg sliding on an inclined frictionless surface that makes an angle of 28° with the horizontal (see figure). There is no slippage between the string and the pulley. What is the magnitude of the acceleration of the system of masses? (The moment of inertia of the pulley is Mr².) m/s² 20 F3 $ 4 % 5 F5 6 tv ♫ e MacBook Air & 7 44 F7 m₂ 8 m₁ 9 O FO O A ISOIH by mi 04 M quies or rne pufferA worker is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 185N and is 3.35m long. What is the tension in the rope nearer the 717N worker when he stands 1.24m from one end? The acceleration of gravity is 9.8m/s?.The drawing shows a per- son (weight, W = 584 N) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assum- 12. ing that the person holds this position. 0.840 m 0.410 m
- In the figure here three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are ma-32 kg. my-45 kg, and mc-13 kg. When the assembly is released from rest. (a) what is the tension in the cord connecting B and C, and (b) how far does A move in the first 0.300 s (assuming it does not reach the pulley)? (a) Number (b) Number Unit Unit BA light rope is attached to a block with mass 4.00 kg that restson a frictionless, horizontal surface. The horizontal rope passes overa frictionless, massless pulley, and a block with mass m is suspendedfrom the other end. When the blocks are released, the tension in therope is 15.0 N. What is the acceleration of either block?The 6-m pole ABC is acted upon by a 460-N force, P, as shown in the figure. The pole is held by a ball-and-socket joint at A and by two cables BD and BE. For a = 3 m, determine the tension in each cable and the reaction at A. (Round the final answers to one decimal place.) 3. 1.5 m P E The tension in cable BD is The tension in cable BE is The reaction at A is - ( y C B 3 m N. N. N)i + 3 m 3 m 1.5 m 3 m X N)j + N)k.
- Find the resultant of force Y 390 Ib MATHalino.com 12 30 1 1 300 lb 722 Ib Figure P-265In the following figure m = 20.0 kg and a622 The coetticient of kinetic friction betwoen the biock and the incline is a -0.40 (Eigure 1) Part A What must be the mass my of the hanging block ifit ia to descend 14.5 m in the tinst 3.00 s after the system is neleaned from rest? Express your anewer with the appropriate units. Figure t of 1 my Value Units Submit Bequest Aner Provide Feedback Next>The coefficient of static friction between a car’s tires and the ground is μs = .85. What is the mass of the car if it takes 9620N of force to make the tire begin to roll?
- A 50-kg block is suspended as shown. The beam is weightless and is hinged to the wall at A. The tension force of the cable T has magnitude: (Use g = 9.8 m/s²) 3m -4m block O a. 620 N O b. 980 N O c. 1143 N O d. 817 N e. 1607 NI have a shelf full of textbookd.Each book has a mass of 1.0 kg and mus=0.3. a. How hard do I need to push horizontally to unstick the top book from the rest of the pile? b. How many books can I unstick from the top of the pile if I push with a force of 16N?The pulley system holding a crate of unknown weight is at equilibrium. Cord BD can support a maximum load of FBD = 1860 N. www D 01 A B a. Determine the maximum weight of the crate, W. b. Determine the angle 0₁. Round your final answers to 3 significant digits/figures. ) N W = 0₁ = 12 5 13 degrees