8. Two forces F1 = 60N and F2 = 40N act on a 4-kg object placed on the frictionless horizontal plane xy. Find the magnitude and direction of the acceleration F. 30° 35 F2
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- – 3. A 64.3 kg skydiver jumps out of an airplane with a parachute. She decides not to pull the rip cord until she reaches terminal velocity. If the resistive force proportionality constant is 2.35 kg/s, what is the magnitude of the velocity when she decides to pull the cord? (Assume the drag force is proportional to the speed.) - a. 16.4 m/s b. 268 m/s c. 151 m/s d. 9.80 m/s e. 27.4 m/sQUESTION 15 Two blocks are attached by massless strings and accelerated to the right on a frictionless horizontal surface by TB. The masses are m₁ = 2.0 kg and m2 = 3.0 kg. The acceleration of the block 1 is 5.0 m/s². Match the answers with questions. TA TB m₁ m₂ A. 25 N, to the left ✓ Tension force TA on block 1 B. none of the given ✓ Tension force TA on block 2 C. 15 N, to the left D. O E. 25 N, to the right F. 15 N, to the right G. 10 N, to the right H. 10 N, to the lefta 139 kg asteroid toward a processing dock, 59 N, F3 39 N, 1 = 30°, and 03 = = Three astronauts, propelled by jet backpacks, push and guide = 27 N, F2 exerting the forces shown in the figure, with F1 What is the magnitude of the asteroid's acceleration? = .x O a. 0.545 m/s² Olb. *0.899 m/s2 OC. 0.747 m/s² O d.o.300 m/s²
- Two forces are applied to an object as shown. Using F, = 27_N, 1 = 42°, F2 = 35_N, and 42 = 18°m, find the net force on the object. F1 P2 F2 magnitude А. 15.08.N 10.23.N 14.81_N F. D. В. 16.96.N E. C. 13.75_N 17.03.N |--/ direction (counter-clockwise from +x axis) А. 105° D. 185.4° В. 82.73° Е. 99.88° С. 151.3° F. 83.36° /--/Determine the acceleration a.The masses are: ?1 = 1 ??, ?2 = 2 ??, ?3 = 4 ??The coefficient of kinetic friction between mass 1 and the incline is ?1 = 0.4The coefficient of kinetic friction between mass 2 and the flat section is ?2 = 0.3