could you please solve ( 1,2,3,4,5,and 6) ? Thank you You are an adventure trave
ID: 1772892 • Letter: C
Question
could you please solve ( 1,2,3,4,5,and 6) ?
Thank you
You are an adventure travel planner and you have just received a request from a prospective client, college student Max Chen. Max wants to bungee jump off a bridge, and he's got one goal - to maximize his fun! Your task : design a plausible scenario for Max's bungee jumping adventure! Choose the height (H) of the jump spot above ground level. Choose Max's equipment - a jump cord with known natural (unstretched) length (L) and spring constant (k). You've got Max's picture, so you are able to guess his mass (m). (You should choose realistic values for these parameters H, L, k, and m.) Max's criteria for fun are as follows. The larger his maximum speed during the course of the jump, the more fun he'll have! And no, it's no fun if he blacks out or dies. Black out will happen if he accelerates at 7 g or more at any point during the jump. And obviously, if he hits the ground below, he dies. In-class Bonus: 1 point for the first team to come up with a diagram COMPLETELY LABELED with reference points and relevant physical quantities (in terms of parameters). Your team leader has the responsi- bility of presenting this on the board. Discussion questions: Team Leaders (First 10 mins) 1. What parameter will determine the bungee jumpers maximum speed? 2. What will determine how close to the ground the bungee jumper gets? 3. Under what condition would the jumper experience a 7 g acceleration? 4. Where is the force on the jumper maximum? 5. How does the bungee jumper's mass affect the problem? 6. When the bungee jumper is closest to the ground, what types of energy must be considered?Explanation / Answer
1. The time of fall will determine the jumper's maximum speed. (v=gt, since initial speed is zero)
2. The closeness to the ground depends on the stretching of the cord. The cord will stretch more for a small value of spring constant k.
3. Not sure about this.
4. The force on the jumper will be maximum close to the ground where the cord will have the maximum stretch. The gravitational force is constant. So, the spring force of the cord will vary.
5. If the mass is high, the speed of fall is high too along with the drop height of the jumper.
6. With the decrease in height, the potential energy gets converted to kinetic energy. So, the energy to be considered is kinetic energy.
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