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Can anyone answer these!Imagineabungeejumpersteppingoutofaform initiallywithkineticzeroenergy.systemtobethebungeejumper,thebungeecordandtheEarthandletusassumethatthethermal energyofthesystemdonotchangeduringjump.MODEL: Wecantreatthebungeejumperasaparticle. Thebungeecordisaperfectspringofzeromass,springconstantkandlengthd(whenthebungeecordistautbuthasnotyetbeguntostretch,thebungeejumperisdbelowtheplatform). Thesystemistakentobethebungeejumper,thebungeecordandtheEarth. Thecoordinatesystemhasypointingupandthegroundistakentobey=0. DragisnegligibleVISUALIZE:Let'sfirstdoanenergybardiagram 2. Draw the energy bar charts at each of the four moments represented below.

Can anyone answer these!Imagineabungeejumpersteppingoutofaform initiallywithkineticzeroenergy.systemtobethebungeejumper,thebungeecordandtheEarthandletusassumethatthethermal energyofthesystemdonotchangeduringjump.MODEL: Wecantreatthebungeejumperasaparticle. Thebungeecordisaperfectspringofzeromass,springconstantkandlengthd(whenthebungeecordistautbuthasnotyetbeguntostretch,thebungeejumperisdbelowtheplatform). Thesystemistakentobethebungeejumper,thebungeecordandtheEarth. Thecoordinatesystemhasypointingupandthegroundistakentobey=0. DragisnegligibleVISUALIZE:Let'sfirstdoanenergybardiagram

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2. Draw the energy bar charts at each of the four moments represented below. If an energy is zero, write "0\" on the zero line. '5' Platform 'C l" i off platform Matched lmgth partially matched 3. You have a bit of a debate with friends about when you begin to slow down: as soon as the bungee cord "kicks in\" (starts pulling on you) or sometime later in your fall. Using free-body diagrams and Newton's Second Law, construct an argument to answer this question. 4. a) Write an expression for the stretching Ay of the cord in terms of h, d and y. b} Write expressions for the total potential energy U of the system in terms of h, d,y,m and 3. before and after the bungee cord \"kick in". 5. Sketch a graph of your gravitational potential energy, UECy) vs your height, 3:, from y = 0 to y = h on the leftmost plot. Then sketch a graph of your elastic potential energy, u5(y) on the center plot. Finally, on the rightmost plot, sketch a graph of your total potential energy U0) = Us (y) + 03(3)) Do these plots on your own without the help of o computer or calculator. 6. What is the total energy of the system Esys during the jump? (It should be one very simple expression that's valid for your entire trip. Use only m, h, g, d and k as necessary.) 7. Using a dotted line, draw the total energy ES\" line on your U0) graph above. At what value of y mustthe energy line interSect Uy)? 8. The energy line should intersect U07) at a second value ofy (put a big dot O on that point on your graph but you do not need to solve for it} what happens at that height? [If your Esysline doesn't have a second intersection with (for), what does that mean about what happened to you during your jump?]. 9. Write a conservation of energy equation that you could use to solve for your speed 17 at any pointy for which the bungee cord has begun to stretch. (You don't need to sotve for v as long as you see that it could be done using your expression.)

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