Question

Parachuting A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter...

Parachuting A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she slows at 2.3 m/s2. She reaches the ground with a speed of 3.8 m/s.

(a) How long is the parachutist in the air?
s

(b) At what height does the fall begin?
m

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A man jumps out of an airplane at an altitude of 16,000 feet and falls freely...
A man jumps out of an airplane at an altitude of 16,000 feet and falls freely for 20 seconds before opening his parachute. Assume linear air resistance, Fa = -kv. Assume that k = 0.18 without the parachute and k = 1.8 with the parachute. Write down the differential equation that describes the velocity  before he opens hisparachute. What is his terminal velocity? What will his velocity be at the instant he opens his parachute. What will the mans altitude be...
A skydiver jumps out of an aeroplane and begins to fall. (a) The skydiver’s parachute deploys...
A skydiver jumps out of an aeroplane and begins to fall. (a) The skydiver’s parachute deploys and, from a height of 1 800 m, the skydiver falls with a constant speed of 26 km/hr. How long does it take for the skydiver to fall to the ground from this height? (1 mark) (b) At a height of 1 800 m the skydiver accidently lets go of a camera (with an initial downward speed of 26 km/hr). What speed is the...
A skydiver opens the parachute at the moment when he is 540 meters above the ground...
A skydiver opens the parachute at the moment when he is 540 meters above the ground and his speed (right before opening the parachute) is 97m/s. What should be the magnitude of the air resistance force for the skydiver to come to a stop exactly at the ground? The mass of the diver including the parachute is 82kg. Assume g=9.8m/s2 ,please include free-body diagram
A daredevil drops from rest out of a stationary helicopter from a height of 3000 m....
A daredevil drops from rest out of a stationary helicopter from a height of 3000 m. She does so without a parachute. A parachute is launched simultaneously from the ground below straight up toward the daredevil. If the parachute is to reach the daredevil when she is still 500 m above the ground, at what speed must the parachute leave the ground? Ignore drag. Group of answer choices 98.5 m/s 133 m/s 79.1 m/s 159 m/s 247 m/s
A student (m = 64 kg) falls freely from rest and strikes the ground. During the...
A student (m = 64 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From what height did the student fall? Assume that the only force acting on him during the collision is that due to the ground.
The University Skydiving Club has asked you to plan a stunt for an air show. In...
The University Skydiving Club has asked you to plan a stunt for an air show. In this stunt, two skydivers will step out of opposite sides of a stationary hot air balloon 1500 meters above the ground. The second skydiver will leave the balloon 20 seconds after the first skydiver but you want them both to land on the ground at the same time. The show is planned for a day with no wind so assume that all motion is...
A skydiver weighing 272 lbf (including equipment) falls vertically downward from an altitude of 6000 ft...
A skydiver weighing 272 lbf (including equipment) falls vertically downward from an altitude of 6000 ft and opens the parachute after 15 s of free fall. Assume that the force of air resistance, which is directed opposite to the velocity, is 0.76|v| when the parachute is closed and 10|v| when the parachute is open, where the velocity v is measured in ft/s. Measure the positive direction of motion downward. Consider that x(0)=0 ft. Use g=32 ft/s2. Round your answers to...
A parachutist whose mass 85 kg drops from a helicopter hovering 2500 m above the ground...
A parachutist whose mass 85 kg drops from a helicopter hovering 2500 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b1=30 N-sec/m when the chute is closed and b2=100 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 20 m/sec, after how many seconds...
1. A car traveling 69 km/h is 247 m behind a truck traveling 93 km/h. How...
1. A car traveling 69 km/h is 247 m behind a truck traveling 93 km/h. How long will it take the car to reach the track? Calculate to one decimal 2.Suppose one of Napoleon cannons has a muzzle speed of 32m/s. It was aimed at 54 ◦ angle. What height can the cannon ball reach? Use g = 9.8 m/s2 Calculate to one decimal 3.A girl throws a rock horizontally, with a velocity of 13 m/s, from a bridge. It...
A golf ball (m = 50 g) is hit from ground level with an initial speed...
A golf ball (m = 50 g) is hit from ground level with an initial speed of 50 m/s and reaches a maximum height of 25 m. Neglect air drag. a. What is the ball’s total mechanical energy just after it has been hit? b. What is the ball’s potential energy at the maximum height? c. What is the ball’s kinetic energy at the maximum height? d. What is the ball’s speed at the maximum height?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT