ADDITIONAL PROBLEMS Question 5.3a: The figure shows a 3.80-kg box being released from rest to slide down a frictionless track of height h = 3.23 m. (Note this image is not to scale.) Initial State mv =0 m/s (a) Determine the following. (a) the speed of the box Vnottom at the bottom of the track m/s (b) its speed Vb) at a height of y = 1.25 m above the bottom of the track m/s

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PRINTER VERSION 1 BACK NEX Z Your answer is partially correct. Try again. In the figure, a frictionless roller coaster car of mass m = 832 kg tops the first hill with speed vo = 19.0 m/s at height h = 44.0 m. What is the speed of the car at (a) point A, (b) point B, and (c) point C? (d) How high will the car go on the last hill, which is too high for it to cross? Use g=9.81 m/s2. First hill- B h/2 C (a) Number19 UnitsTm/s (b) Number28.15 UnitšT m/s (c) Number 35 Units m/s (d) Number" Units Click if you would like to Show Work for this question: gen/shared/assignment/test/aglist.uni?id3. Open Show Work earch 9:18 PM ENG 4/4/2021 13 ) is 16 17 .ロ/京 19home & 4 6. 7. 8. 9. 近

Current Attempt in Progress A particle, starting from point A in the drawing (the height at A is 3.00 m), is projected down the curved runway. Upon leaving the runway at point B, the particle is traveling straight upward and reaches a height of 6.39 above the floor before falling back down. Ignoring friction and air resistance, find the speed of the particle at point A. B

1. A roller-coaster car with a mass of 1200 kg starts at rest from a point 20 m above the ground. At point B, it is 9 m above the ground. [Express your answers in kilojoules (kJ).] a. What is the initial potential energy of the car? b. What is the potential energy at point B? c. If the initial kinetic energy was zero and the work done against friction between the starting point and point B is 40 000 J (40 kJ), what is the kinetic energy of the car at point B 2. The time required for one complete cycle of a mass oscillating at the end of a spring is 0.80 s. What is the frequency of oscillation?

A block slides across the ground and comes to rest in 12.0 m. muk = 0.200. Find the initial speed using conservation of E. Correct answer: 6.86 m/s

A small box with mass m is released from rest by a spring compressed a 3. distance d. The spring constant is k. After being released, the object slides along a frictionless track. What is the speed of the box when it reaches point B at height h/2? What must be the value of d so that the box comes to rest at the top of the track at point C? Law B h m Application A

a) Find the minimum height h in terms of R so that the cart passes through point A barely without detaching itself from the loop. b) What is the speed of the car at point A if h = 10 m? h A R

A 3 kg ball falls from height of 14 m. What willbe potential energy of the ball after 1 second?  Use g = 9.8 m/s2

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