8. The paths of a roller coaster have been provided for different rides. Assuming each of the coasters starts the path from the same initial height, with the same initial velocity, and no friction; compare the speeds of the roller coaster for tracks A- D when they arrive at the horizontal section on dashed line final height at the end of the track (marked with an X). Justify your comparison with basic physics concepts (think about the energy bar graphs) and indicate any assumptions made.
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- I included two pictures. Please show me how to approach the problem in the correct manner based on the feedback given. It is okay to completely change the answer if you need to. Please give a reasoning to why the claim is not reasonable and the work needed to back this up.Computation. A block is released from rest at the top of a 47-m long frictionless ramp inclined at 34° above the horizontal. What is the block's speed at the bottom of the ramp? v= m/s Record your numerical answer below, assuming three significant figures. Remember to include a "-" if/when necessary.A 4.00kg block moves with an initial speed of3.50 km/h downhillover an inclined plane as shown in the figure. The height of the inclined plane is 51.3cm and the friction coefficient between the block and the incline is 0.120. a.How much is the speed of the block at the midpoint of the inclined side. b.How much is the speed of the block at the bottom of the inclined side.
- Several physical situations are described below. For each situation, simplify the work-energy equation by canceling any zero terms and any energy terms (whether KE or PE) which are unchanging. Explain each term which gets canceled. A Hot Wheels car starts from rest on top of an inclined plane and rolls down the incline through a loop and along a horizontal surface. Friction and air resistance have a significant effect on the car. Simplification of Work-Energy Equation KEi + PEi + Wnc = KEf + PEfA ball is dropped from the top of a building. Person A choses the top of the building as a reference choice while person B choses the bottom. Explain whether the energy calculated using two differnt reference points are the same or different.You throw a basketball straight up into the air with an initial velocity of 5.6 m/s. The ball leaves your hand 1.2 meters above the ground. It moves upwards, stops, and then goes all the way down until it hits the ground (below the height you threw from).A. Use conservation of energy (and not the kinematics equations) to calculate the velocity of the ball the instant before it hits the ground.
- A block of massm = 5 kg is released from point A at height yA = 12.9 m and slides on the frictionless track as shown in figure below. Determine the block's speed at point B. %3D B) YA 3.20 m 2.00 m 13.78m/sConservation of Energy Q5: Please answer each part step by step and explain each step (even if minor) in detail please.Several physical situations are described below. For each situation, simplify the work-energy equation by canceling any zero terms and any energy terms (whether KE or PE) which are unchanging. Explain each term which gets canceled. A track is constructed by stretching a grooved and pliable material between two lab poles. A metal ball starts from rest at point A and rolls to point B. Friction and air resistance have an effect upon the ball's motion. Simplification of Work-Energy Equation KEi + PEi + Wnc = KEf + PEf
- Using the principles of energy and conservation of energy, determine how the velocity of an object at the bottom of a ramp is related to its initial starting height. 1. If the ball is initially motionless at the top of a ramp of height h, write down expressions for the initial kinetic, potential, and total energy of the ball. 2. What expressions for the kinetic, potential, and total energy of the ball as it reaches the bottom of the ramp. 3. Using the principle of conservation of energy, what expression relates the final velocity of the ball to its initial height on the ramp.E. 19.77 m/s 21.85 m/s C. 26.37 m/s F. 1--1 IYYVE On the roller-coaster shown, a car is moving 12 m/s toward the right at point 1. Assuming no friction, calculate the speed of the car at point 4. 3 40 m 26 m 4 15 m 21. A. 20.28 m/s D. 25.18 m/s 24.54 m/s B. 18.94 m/s E. F. C. 23.73 m/s 26.35 m/s 1--1 KTMDG A box slides from rest down a curved slope. Its initial height is 21 m above the ground, and it comes off the slope 7_m above the ground. How fast is the box moving as it leaves the slope? Assume friction is negligible. ^ Pigshow.jpeg Pig show.jpegPlease in 15 minutes!