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- H.W: A frame ABC is supported in part by cable DBE that passes through a frictionless ring at B. Knowing that the tension in the cable is 385 N, determine (a)- the resultant ( R ) of the forces as a vector which exerted by the cables on the support at D and E, (b)- the angles between R and each of the coordinate axes. Answer: 280 mm 210 mm R= FRD + FRE =-(375 N)i + (455 N)j-(460 N)k E 0 = 120.1° = 52.5° 510 mm 400 mm 0. = 128.0° 600 mm 480 mm B.F The force F = 460 N acts on the frame. Resolve this force into components acting along members AB and AC, and determine the magnitude of each component. Given that a = 34° and ß = 47°, The magnitude along AB is (round to one decimal place): The magnitude along AC is (round to one decimal place): NA horizontal conveyor belt is running with constant speed V=3.0m/s. A small disk enters the horizontal velocity Vo=4.0 m/s perpendicular to the velocity of the belt . Coefficient of friction between the disk and the belt is 0.5. Q1.What should be the maximum width of the belt so that disk does not fall it? Q2.What is the minimum speed of the disk relative to the reference frame fixed with the ground?Answer: Q1-2 metreQ2-2.4 m/sec
- 1. Consider a mass m initially at rest at a large distance I from center of the earth (l>R the earth's radius). The mass m is released and falls toward the earth. (a) Calculate the speed of the mass as a function of its distance x from the center of the earth. (b) In the approximation that l>>R, how much time does it take for the mass m to reach the earth? Express your answers in terms of R, 1, g (acceleration at the earth's surface) and (for part a) x.The force F= 450 lb acts on the frame. Resolve this Iorce into components acting along members AB and AC, and determine the magnitude of each component. 30 A 45° 450 Ib BTwo manned satellites approaching one another, at a relative speed of 0.200 m/s, intending to dock. The first has a mass of 5.00 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. a. Calculate the final velocity (after docking) in m/s by using the frame of reference in which the first satellite was originally at rest. (Assume the second satellite moves in the positive direction. Include the sign of the value in your answer.) m/s b. What is the loss of kinetic energy (in J) in this inelastic collision? J c. Repeat both parts by using the frame of reference in which the second satellite was originally at rest. final velocity (m/s) m/sloss of kinetic energy (J) J Explain why the change in velocity is different in the two frames, whereas the change in kinetic energy is the same in both.
- The force F= 450 lb acts on the frame. Resolve this Iorce into components acting along members AB and AC, and determine the magnitude of each component. 30° 45° 450 IbIn another dream, you find yourself in the middle of outer space with your bestfriend and his evil twin. They look identical but you know the evil twin has a muchlower mass since he is only part human (and part machine.) Without harmingeither of them, how can you determine which one is the evil twin? ConsiderNewton’s Second Law and inertial mass.C Chegg X C Sign In https://bconline.broward.edu/d21/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=514283&is... A Q If a projectile mass of 1.0 kg moving at 19.0 m/s collides with a motionless target mass of 15.0 kg perfectly inelastically what is the total kinetic energy of the projectile and target after the collision? X 1 OneLoc X Quizzes X Q instagra X Your Answer: Use standard MKS unit abbreviations. Instagra X Answer units (75,834 X C Reset P. X X New ta X + {}
- Two asteroids of equal mass in the asteroid belt between Mars and Jupiter collide with a glancing blow. Asteroid A, which was initially traveling at vA1 = 40.0 m/s with respect to an inertial frame in which asteroid B was at rest, is deflected 30.0° from its original direction, while asteroid B travels at 45.0° to the original direction of A, as shown in (Figure 1). Figure 1 of 1 A 40.0 m/s 30.0° 45.0° ВSuppose we have a dense particle with mass 7 kg which follows the path r(t)=⟨sin(8t),cos(2t),2t9/2⟩ with units in meters and seconds.How do I find what force acts on the mass at t=0 ?The IKAROS spacecraft, launched in 2010, was designed to test the feasibility of solar sails for spacecraft propulsion. These large, ultralight sails are pushed on by the force of light from the sun, so the spacecraft doesn't need to carry any fuel. The force on IKAROS's sails was measured to be 1.12 mNmN. If this were the only force acting on the 290 kgkg spacecraft, by how much would its speed increase after 9.0 months of flight? Assume there are 30 days in each month.