A 70 kg person does a bungee jump from a bridge. The natural length of the...
A 70 kg person does a bungee jump from a bridge. The natural length of the bungee cord is 20m and it has a spring constant k of 80 N/m. When the bungee cord has a total length of 25m, what is the acceleration of the jumper (to 2 significant figures)?
Homework Answers
Use Newton’s law of motion to find the equation of motion for
the person and solve that to find the acceleration as shown
below
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A 70 kg person does a bungee jump from a bridge. The natural
length of the...
EXAMPLE 6.3 Bungee Jumper A bungee jumper locates a suitable bridge that is 75.0 m above...
EXAMPLE 6.3 Bungee Jumper A bungee jumper locates a suitable bridge that is 75.0 m above the river below, as shown in Figure 6.14. The jumper has a mass of m-80.0 kg and a height of Ljumper 1.85 m, we can think of a bungee cord as a spring. The spring constant of the bungee cord is k-50.0 N/m. Assume that the mass of the bungee cord is negligible compared with the jumper's mass Lo PROBLENM The jumper wants to...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above a river. As he falls, air resistance is negligible, and the unstretched bungee cord attached to him uncoils. The mass of the bungee cord is negligible. When the jumper is 50.0 m below the bridge, the bungee cord is completely uncoiled and forms a straight line. Below that point, the bungee cord acts as a spring, obeying Hooke's law as it is stretched beyond...
15. [lpt] A 59.6 kg bungee jumper jumps from a bridge. She is tied to a...
15. [lpt] A 59.6 kg bungee jumper jumps from a bridge. She is tied to a 12.4 m long bungee cord and falls a total of 34.2 m. Calculate the spring constant k of the bungee cord. Answer: Submit All Answers
You sign up for a bungee jump off a tall bridge. A thick rope with a...
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A 68 kg bungee jumper is standing on a platform 46 m above the ground. The...
A 68 kg bungee jumper is standing on a platform 46 m above the ground. The jumper falls from rest and it is assumed that the bungee cord, which is attached to the bungee jumper at one end and the platform at the other, has no effect for the first 9 m of the fall, i.e. the natural length of the cord is 9 m. When the bungee jumper is more than 9 m away from the platform the cord...
A 65.2-kg bungee jumper is standing on a tall platform (h_0 = 46.2 m), as indicated...
A 65.2-kg bungee jumper is standing on a tall platform (h_0 = 46.2 m), as indicated in the figure. The bungee cord has a natural length of L_0 = 8.40 m and, when stretched, behaves like an ideal spring with a spring constant of k = 48.3 N/m. The jumper falls from rest, and it is assumed that the only forces acting on him are his weight and, for the latter part of the descent, the elastic force of the...
Consider a bungee jumper dropping vertically in freefall from a bridge 80 m above the ground....
Consider a bungee jumper dropping vertically in freefall from a bridge 80 m above the ground. After three seconds, the elastic cord connecting the jumper to the bridge starts to stretch, which changes the jumper's acceleration to 15 m/s2 upwards. a) Sketch (without doing any math) the position vs time, velocity vs. time, and acceleration vs. time graphs for the bungee jumper from the moment they start to fall to the moment they reach the closest to the ground. b)...
7. A bungee jumper with mass m 50 kg leaps fron a bridge. The jumper is...
7. A bungee jumper with mass m 50 kg leaps fron a bridge. The jumper is attached to the bridge by an elastic cord with axial stiffness k = 0.10 kN m-1. The cord unravels to its ful unstretched length 3.0s after the jumper has left the bridge. Starting from when the jumper leaves the bridge, determine the earliest time at which the elastic cord reaches its maximum extension. Neglect air resistance.[15
Pierce has a mass of 80 kg and is bungee jumping off of the top if...
Pierce has a mass of 80 kg and is bungee jumping off of the top if a dam in Russia with a cord that is too long. When he splashes into the water at the bottom of the dam he is moving at a speed of 8 m/s, and the bungee cord is stretched to be 25m longer than its rest length. If the bungee cord has a spring constant of 150 N/m, how high is the dam that Pierce...
A 59,3 kg bungee jumper jumps off a bridge and undergoes simple harmonic motion. If the...
A 59,3 kg bungee jumper jumps off a bridge and undergoes simple harmonic motion. If the period of oscillation is 20,5 s, what is the spring constant of the bungee cord, assuming it has negligible mass compared to that of the jumper? Answer in two decimal places.
EXAMPLE 6.3 Bungee Jumper A bungee jumper locates a suitable bridge that is 75.0 m above the river below, as shown in Figure 6.14. The jumper has a mass of m-80.0 kg and a height of Ljumper 1.85 m, we can think of a bungee cord as a spring. The spring constant of the bungee cord is k-50.0 N/m. Assume that the mass of the bungee cord is negligible compared with the jumper's mass Lo PROBLENM The jumper wants to...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above a river. As he falls, air resistance is negligible, and the unstretched bungee cord attached to him uncoils. The mass of the bungee cord is negligible. When the jumper is 50.0 m below the bridge, the bungee cord is completely uncoiled and forms a straight line. Below that point, the bungee cord acts as a spring, obeying Hooke's law as it is stretched beyond...
15. [lpt] A 59.6 kg bungee jumper jumps from a bridge. She is tied to a 12.4 m long bungee cord and falls a total of 34.2 m. Calculate the spring constant k of the bungee cord. Answer: Submit All Answers
A 68 kg bungee jumper is standing on a platform 46 m above the ground. The jumper falls from rest and it is assumed that the bungee cord, which is attached to the bungee jumper at one end and the platform at the other, has no effect for the first 9 m of the fall, i.e. the natural length of the cord is 9 m. When the bungee jumper is more than 9 m away from the platform the cord...
A 65.2-kg bungee jumper is standing on a tall platform (h_0 = 46.2 m), as indicated in the figure. The bungee cord has a natural length of L_0 = 8.40 m and, when stretched, behaves like an ideal spring with a spring constant of k = 48.3 N/m. The jumper falls from rest, and it is assumed that the only forces acting on him are his weight and, for the latter part of the descent, the elastic force of the...
7. A bungee jumper with mass m 50 kg leaps fron a bridge. The jumper is attached to the bridge by an elastic cord with axial stiffness k = 0.10 kN m-1. The cord unravels to its ful unstretched length 3.0s after the jumper has left the bridge. Starting from when the jumper leaves the bridge, determine the earliest time at which the elastic cord reaches its maximum extension. Neglect air resistance.[15
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