An 80.0-kg skydiver jumps out of a balloon at an altitude of 1,190 m and opens the parachute at an altitude of 180.0 m. (a) Assuming that the total retarding force on the diver is constant at 50.0 N with the parachute closed and constant at 3,600 N with the parachute open, what is the speed of the diver when he lands on the ground? m/s (b) Do you think the skydiver will get hurt? Explain. This answer has not been graded yet. (c) At what height should the parachute be opened so that the final speed of the skydiver when he hits the ground is 4.30 m/s? (d) How realistic is the assumption that the total retarding force is constant? Explain. This answer has not been graded yet. 8:52 SAMSUNG

An 80.0-kg skydiver jumps out of a balloon at an altitude of 1,190 m and opens the parachute at an altitude of 180.0 m. (a) Assuming that the total retarding force on the diver is constant at 50.0 N with the parachute closed and constant at 3,600 N with the parachute open, what is the speed of the diver when he lands on the ground? m/s (b) Do you think the skydiver will get hurt? Explain. This answer has not been graded yet. (c) At what height should the parachute be opened so that the final speed of the skydiver when he hits the ground is 4.30 m/s? (d) How realistic is the assumption that the total retarding force is constant? Explain. This answer has not been graded yet. 8:52 SAMSUNG

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 8.21P: A toy cannon uses a spring to project a 5.30-g soft rubber ball. The spring is originally compressed...

See similar textbooks

Similar questions

A car’s bumper is designed to withstand a 4.0-km/ h (1.1-m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.200 m while bringing a 900-kg car to rest from an initial speed of 1.1 m/s.
A bottle rocket is shot straight up in the air with a speed 30 m/s. if the air resistance is ignores, the bottle would go up to a height of approximately 46 m. however the rocket goes up to only 35 m before returning to the ground. What happened? Explain, giving only a qualitative response.
A block of mass m is dropped from the fourth floor of an office building and hits the sidewalk below at speed v. From what floor should the mass be dropped to double that impact speed? (a) the sixth floor (b) the eighth floor (c) the tenth floor (d) the twelfth floor (e) the sixteenth floor
A toy cannon uses a spring to project a 5.30-g soft rubber ball. The spring is originally compressed by 5.00 cm and has a force constant of 8.00 N/m. When the cannon is fired, the ball moves 15.0 cm through the horizontal barrel of the cannon, and the barrel exerts a constant friction force of 0.032 0 N on the ball. (a) With what speed does the projectile leave the barrel of the cannon? (b) At what point does the hall have maximum speed? (c) What is this maximum speed?
An 80.0 kg skydiver jumps out of a balloon at an altitude of 1.00 x 10^3 m and opens the parachute at an altitudeof 200.0 m.a) Assuming that the total retarding force on the diver is constant at 50 N with the parachute closed and constantat 3.60 x 10^3 N with the parachute open, what is the speed of the diver when he lands on the ground?b) Do you think the skydiver will get hurt? Explain.c) At what height should the parachute be opened so that the final speed of the skydiver when he hits the groundis 5.00 m/s?d) How realistic is the assumption that the total retarding force is constant? Explain.
A 2.1 ✕ 103-kg car starts from rest at the top of a 5.3-m-long driveway that is inclined at 18° with the horizontal. If an average friction force of 4.0 ✕ 103 N impedes the motion, find the speed of the car at the bottom of the driveway. m/s
An 80.0 - kg skydiver jumps out of a balloon at an altitude of1.00 x 103 m and opens the parachute at an altitude of 200.0 m.(a) Assuming that the total retarding force on the diver isconstant at 50.0 N with the parachute closed and constant at3.60 x 103 N with the parachute open, what is the speed ofthe diver when he lands on the ground? (b) Do you think theskydiver will get hurt? Explain. (c) At what height should theparachute be opened so that the final speed of the skydiverwhen he hits the ground is 5.00 m/s? (d) How realistic is theassumption that the total retarding force is constant? Explain.
A 50 kg person jumping from a height of 1 m is traveling at 4.5 m/sec just prior to landing. Suppose she lands on a pad and stops in 0.2 sec. What maximum force will she experience ?
26. An 80.0-kg skydiver jumps out of a balloon at an alti- tude of 1 000 m and opens his parachute at an altitude of 200 m. (a) Assuming the total retarding force on the skydiver is constant at 50.0 N with the parachute closed and constant at 3 600 N with the parachute open, find the speed of the skydiver when he lands on the ground (b) Do you think the skydiver will be injured? Explain (c) At what height should the parachute be opened so that the final speed of the skvdiver when he hits the ground is 5.00 m/s? (d) How realistic is the assumption that the total retarding force is constant? Explain
A 10 kg object is released at the top of a building 100 m high. If the force of air resistance is on the object is 40 N. Its speed just before strikes the ground is A 55 m/s B 30 m/s C 50 m/s D 34. 64 m/s
An 80.0 - kg skydiver jumps out of a balloon at an altitude of 1000 m and opens the parachute at an altitude of 200 m. (a) Assuming the total retarding force on the diver is constant at 50.0 N with the parachute closed and constant at 3 600 N with the parachute open, find the skydiver's speed when he lands on the ground. (b) Do you think the skydiver will be injured? Explain. (c) At what height should the parachute be opened so that the final speed of the skydiver when he hits the ground is 5.00 m/S?
A 2.1 ✕ 103-kg car starts from rest at the top of a 4.7-m-long driveway that is inclined at 21° with the horizontal. If an average friction force of 4.0 ✕ 103 N impedes the motion, find the speed of the car at the bottom of the driveway.