The spring shown in the figure is compressed 51 cm and used to launch a 100 kg physicsstudent. The track is frictionless until it starts up the incline. The student's coefficient of kineticfriction on the 30° incline is 0.12. (Figure 1)You may want to review (Page).For help with math skills, you may want to review:Mathematical Expressions Involving SquaresFor general problem-solving tips and strategies for this topic, you may want to view a Video TutorSolution of Car rolling down a hill.Figurek = 80,000 N/mm = 100 kg10 m30°1 of 1Part AWhat is the student's speed just after losing contact with the spring?Express your answer to two significant figures and include the appropriate units.V =SubmitPart BΔg =0ValueSubmitμĂRequest AnswerProvide FeedbackHow far up the incline does the student go?Express your answer to two significant figures and include the appropriate units.HÅValuem/sRequest Answerwwwwwm??

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e) Figure Q4b shows a pulley system suspended by a hook and a bolt fixed to the ceiling. The pulley system is used to lift a load (FL) of 250 N when an effort force (FE) is applied. Determine the tension force in each support rope, the effort force (FE) and reaction force (FR) necessary to lift and hold a load of 250 N. *Assume that the pulley system is weightless and frictionless. FR +3 www FE d₂ d₁ ↑ FL Figure Q4b (Illustrative and not to scale) f) Calculate the ideal mechanical advantage (IMA) for the pulley system in Figure Q4b and calculate the distance d₁ moved when distance d₂ is 1.75 m.
Use conservation of energy to solve both parts of the following problem (initial kinetic energy + initial gravitational potential energy = final kinetic energy + final gravitational potential energy): A skydiver with a mass of 80.0 kg steps out of a hot-air balloon holding at an altitude of 1.00 km and opens their parachute at an altitude of 200. m. While they’re in free-fall, there is a total drag force of 50.0 N on them. Once the parachute has opened, there is a total drag force of 3.60 kN on them. (y = 0 at 200. m) (a) How fast is the skydiver going when they open their parachute? (b) How fast will they be going once they touch down?
pervious question: Same type of track as in the previous problem, this time with d = 4.73 m. The block starts at x = 0, and is given a push to the left with an initial speed of 7.57 m/s, so it starts sliding up the track to the left. At what value of x will the block reverse direction and start sliding back down? New question: OK, same sort of track, but now with d = 2.12 m. Now suppose the blocks starts on the track at x = 4.10 m. The block is given a push to the left and begins to slide up the track, eventually reaching its maximum height at x = 0, at which point it turns around and begins sliding down. What was its initial speed in this case? 18.98 m/s 12.47 m/s 8.82 m/s 14.90 m/s
A block is being pushed with a force of 10 N at a downward angle of 60 degrees below the horizontal. The coefficient of static friction is 0.6. Is this enough to make a block of 800 g move?
A box starts from rest and slides 40 m down a frictionless inclined plane. The total vertical displacement of the box is 20 m. How long does it take for the block to reach the end of the plane?
Work calculated by graphical integration. In Figure (b), an 8.0 kg block slides along a frictionless floor as a force acts on it, starting at x₁ = 0 and ending at x3 = 6.5 m. As the block moves, the magnitude and direction of the force vary according to the graph shown in Figure (a). For example, from x = 0 tox= 1 m, the force is positive (in the positive direction of the x axis) and increases in magnitude from 0 to 40 N. And from x = 4 m to x = 5 m, the force is negative and increases in magnitude from 0 to 20 N. The block's kinetic energy at x₁ is K₁ = 280 J. What is the block's speed at (a) x₁ = 0, (b) x₂ = 4.0 m, and (c) x3 = 6.5 m? F(N) 40- 0 -20 2 (a) (b) 6 6 x (m) x (m)
A 18-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 24 N. Starting from rest, the sled attains a speed of 1.7 m/s in 9.1 m. Find the coefficient of kinetic friction between the runners of the sled and the snow. Number i Units
Fundamentals of Physics, 11th Edition, Custom WileyPLUS Course for West Help | System Announcements PRINTER VERSION 1 BACK NEXT Chapter 08, Problem 057 GO In the figure, a 3.9 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is vo = 6.0 m/s, the height difference is h = 0.97 m, and Hy = 0.65o. Find d. l = 0- Number Units the tolerance is +/-5% LINK TO TEXT LINK TO SAMPLE PROBLEM VIDEO MINI-LECTURE Question Attempts: 0 of 5 used SAVE FOR LATER SUBMIT ANSWER