Physics: Principles with Applications
7th Edition
ISBN: 9780321625922
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 4, Problem 6P
A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 g’s. Calculate the force on a 65-kg person accelerating at this rate. What distance is traveled if brought to rest at this rate from 95 km/h?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A Boeing 747 jumbo jet with 400 passengers and a mass of 85,000lbs requires a takeoff speed of about 300km/h with a takeoff length of 3.2 km. If the plane accelerated constantly starting from rest, what is the necessary acceleration?
A 1,900 kg car is slowed down on the high way from 50 m/s to 36 m/s over a
distance of 50 m (did the driver spot a patrol car?). How many Newtons of frictional
force was responsible for the deceleration?
Answer in absolute value.
Accident analysis has led experts to believe that Princess Diana experienced a deceleration rate of no less than 700 m/s2 when she was involved in the tragic accident that claimed her life. If she had been wearing a seatbelt experts believe the net force Diana would have experienced would be along the lines of 18,000 N. What would be the rate of deacceleration have been? Assuming Diana had a mass of 60kg.
Chapter 4 Solutions
Physics: Principles with Applications
Ch. 4 - A 150-kg football player collides head-on with a...Ch. 4 - A line by the poet T. S. Eliot (from Murder in the...Ch. 4 - Why does a child in a wagon seem to fall backward...Ch. 4 - A box rests on the (frictionless) bed of a truck....Ch. 4 - Prob. 3QCh. 4 - If the acceleration of an object is zero, are no...Ch. 4 - Prob. 5QCh. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - (a) Why do you push down harder on the pedals of a...
Ch. 4 - A stone hangs by a fine thread from the ceiling,...Ch. 4 - Prob. 10QCh. 4 - Prob. 11QCh. 4 - Prob. 12QCh. 4 - Prob. 13QCh. 4 - Prob. 14QCh. 4 - Prob. 15QCh. 4 - Prob. 16QCh. 4 - Prob. 17QCh. 4 - Prob. 18QCh. 4 - Prob. 19QCh. 4 - A block is given a brief push so that it slides up...Ch. 4 - Prob. 21QCh. 4 - Prob. 22QCh. 4 - A truck is traveling horizontally to the right...Ch. 4 - You are trying to push your stalled car. Although...Ch. 4 - Matt, in the foreground of Fig. 4-39, is able to...Ch. 4 - A bear sling, Fig. 4-40, is used in some national...Ch. 4 - What causes the boat in Fig. 4-41 to move forward?...Ch. 4 - A person stands on a scale in an elevator. His...Ch. 4 - When a skier skis down a hill, the normal force...Ch. 4 - A golf ball is hit with a golf club. While the...Ch. 4 - Suppose an object is accelerated by a force of 100...Ch. 4 - You are pushing a heavy box across a rough floor....Ch. 4 - Prob. 11MCQCh. 4 - The normal force on an extreme skier descending a...Ch. 4 - To pull an old stump out of the ground, you and a...Ch. 4 - What force is needed to accelerate a sled (mass =...Ch. 4 - Prob. 2PCh. 4 - How much tension must a rope withstand if it is...Ch. 4 - According to a simplified model of a mammalian...Ch. 4 - Superman must stop a 120-km/h train in 150 m to...Ch. 4 - A person has a reasonable chance of surviving an...Ch. 4 - What average force is required to stop a 950-kg...Ch. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10PCh. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - A box weighing 77.0 N rests on a table. A rope...Ch. 4 - Figure 4-46
Problem 21.
21. (I) Draw the free-body...Ch. 4 - Prob. 22PCh. 4 - Arlene is to walk across a “high wire" strung...Ch. 4 - A window washer pulls herself upward using the...Ch. 4 - One 3.2-kg paint bucket is hanging by a massless...Ch. 4 - Prob. 26PCh. 4 - A train locomotive is pulling two cars of the same...Ch. 4 - Prob. 28PCh. 4 - At the instant a race began, a 65-kg sprinter...Ch. 4 - A 27-kg chandelier hangs from a ceiling on a...Ch. 4 - Prob. 31PCh. 4 - Figure 4-53 [shows a block (mass mA) on a smooth...Ch. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - 35. (Ill) Suppose the pulley in Fig. 4-55 is...Ch. 4 - Prob. 36PCh. 4 - A force of 35.0 N is required to start a 6.0-kg...Ch. 4 - Prob. 38PCh. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - A box is given a push so that it slides across the...Ch. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - 46. (II) For the system of Fig. 4-32 (Example...Ch. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - A person pushes a 14.0-kg lawn mower at constant...Ch. 4 - Prob. 51PCh. 4 - (a) A box sits at rest on a rough 33° inclined...Ch. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - A 25.0-kg box is released on a 27° incline and...Ch. 4 - Prob. 57PCh. 4 - Prob. 58PCh. 4 - The crate shown in Fig. 4-60 lies on a plane...Ch. 4 - A crate is given an initial speed of 3.0 m/s up...Ch. 4 - Prob. 61PCh. 4 - Prob. 62PCh. 4 - The coefficient of kinetic friction for a 22-kg...Ch. 4 - On an icy day, you worry about parking your car in...Ch. 4 - Two masses mA= 2.0 kg and mB= 5.0 kg are on...Ch. 4 - Prob. 66PCh. 4 - Prob. 67PCh. 4 - A 2.0-kg purse is dropped from the top of the...Ch. 4 - Prob. 69GPCh. 4 - 70. A 75.0-kg person stands on a scale in an...Ch. 4 - Prob. 71GPCh. 4 - Prob. 72GPCh. 4 - Prob. 73GPCh. 4 - Prob. 74GPCh. 4 - Prob. 75GPCh. 4 - (a) What minimum force F is needed to lift the...Ch. 4 - Prob. 77GPCh. 4 - A jet aircraft is accelerating at 3.8 m/s2 as it...Ch. 4 - Prob. 79GPCh. 4 - Prob. 80GPCh. 4 - Prob. 81GPCh. 4 - Prob. 82GPCh. 4 - Prob. 83GPCh. 4 - Prob. 84GPCh. 4 - Prob. 85GPCh. 4 - Prob. 86GPCh. 4 - Prob. 87GPCh. 4 - Prob. 88GPCh. 4 - Prob. 89GPCh. 4 - Prob. 90GPCh. 4 - A 72-kg water skier is being accelerated by a ski...Ch. 4 - Prob. 92GPCh. 4 - Prob. 93GPCh. 4 - Prob. 94GPCh. 4 - Prob. 95GPCh. 4 - Prob. 96GPCh. 4 - Prob. 97GP
Additional Science Textbook Solutions
Find more solutions based on key concepts
A 1.5-V battery stores 4.5 kJ of energy. How long can it light a flashlight bulb that draws 0.60 A?
Essential University Physics (3rd Edition)
American football is played on a 100-yd-long field, excluding the end zones. How long is the field in meters? (...
University Physics Volume 1
Discuss the threat that future impacts may pose to us and our planet, and how we know that the threat is real.
Life in the Universe (4th Edition)
An elevator suspended by a cable is descending at constant velocity. How many force vector would be shown on ...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
24.54. Set Up: Use . A plot of versus — should give a straight line with a slope of unity and a y intercept of...
College Physics (10th Edition)
The force, when you push against a wall with your fingers, they bend.
Conceptual Physics (12th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A 4500 kg jet reaches a takeoff velocity of 70 m/s after accelerating from rest for 700 m down the runway. What net force is required from the jet's engines?arrow_forwardkindly answer this immediately thankyou -An automobile has a speed of 60 mi/h. When the brakes are applied, it slows to 15 mi/h in 4 second. What is its acceleration? how far does it travel during the fourth second? -A 1.5 ton automobile crashed into a wall at a speed of 10 mi/h. The car moved 5.00 in before being brought to rest. What was the average force exerted on the wall by the car. -A body slides down a frictionless plane and during the third second after starting from rest it travels 19.4 m. What is the angle of inclination of the plane?arrow_forwardA jet aircraft with a mass of 4,650 kg has an engine that exerts a force (thrust) equal to 60,700 N. (a) What is the jet's acceleration when it takes off? (Give the magnitude.) m/s2(b)What is the jet's speed after it accelerates for 9 s? (Assume it starts from rest.) m/s(c) How far does the jet travel during the 9 s? marrow_forward
- A force of 1600 N acts parallel to a ramp to push a 300-kg piano into a moving van. The ramp is inclined at 20° . (a) What is the acceleration of the piano up the ramp? (b) What is the velocity of the piano when it reaches the top if the ramp is 4.0 m long and the piano starts from rest?arrow_forwardA jet aircraft with a mass of 4,375 kg has an engine that exerts a force (thrust) equal to 60,400 N. (a) What is the jet's acceleration when it takes off? (Give the magnitude.) m/s2 (b)What is the jet's speed after it accelerates for 5 s? (Assume it starts from rest.) m/s (c) How far does the jet travel during the 5 s?arrow_forwardA railway engine pulls a wagon of mass 10000 kg along a straight track at a steady speed. The pull force in the couplings between the engine and wagon is 1000 N. If the pull force is increased to 1200 N and the resistance to movement of the wagon remains constant, what would be the acceleration of the wagon?arrow_forward
- A 2600 kg car traveling to the north is slowed down uniformly from an initial velocity of 30.5 m/s by a 7670 N braking force acting opposite the car’s motion. (a) What is the car’s velocity after 1.87 s?Answer in units of m/s. (b) How far does the car move during the 1.87 s?Answer in units of m.arrow_forwardA net force of 3,000.0 N accelerates a car from rest to 37.4 km/h in 5.00 s. (a) What is the mass of the car? (b) What is the weight of the car? (а) т%3 x 10° kg sa (b) w = × 10ª N Nextarrow_forwardA net force is required to give an object with mass m an acceleration a. If a net force 6 F is applied to an object with mass 2m, what is the acceleration on this object?arrow_forward
- A 400,000 kg airplane accelerates at a constant rate from rest along a runway for 3000 meters and reaches a takeoff speed of 80 m/s. (a) What is the acceleration of the airplane along the runway? (b) How much time elapses during takeoff? c) What is the velocity of the airplane at the 1000 m location? (d) What is the net force on the airplane?arrow_forwardA 1100-kg car pulls a boat on a trailer. (a) What total force resists the motion of the car, boat, and trailer, if the car exerts a 1900-N force on the road and produces an acceleration of 0.550 m/s2? The mass of the boat plus trailer is 700 kg. (b) What is the force in the hitch between the car and the trailer if 80% of the resisting forces are experienced by the boat and trailer?arrow_forwardA crate (20 kg) is hung in an elevator by a cord rated to withstand a tension of 300 N. The elevator starts at rest and begins moving upwards until the cord holding the crate breaks. What was the acceleration of the elevator when the cord broke? Assume g = 10 m/s2.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Drawing Free-Body Diagrams With Examples; Author: The Physics Classroom;https://www.youtube.com/watch?v=3rZR7FSSidc;License: Standard Youtube License