physics

In an emergency stop to avoid an accident,a shoulderstrap seat belt holds a 60-kg passenger firmly in place. If the car were initally traveling at 90 km/h and came to a stop in 5.5s along a straight, level road, what was the average force applied to the passenger by the seatbelt?

  1. 👍
  2. 👎
  3. 👁
  1. First convert 90 km/h to ___meters per second.
    The conversion factor is
    (1000 m/km) * (1 hr/3600s)
    Divide that speed in m/s by 5.5 s to get the deceleration rate in m/s^2.

    Mass(kg) x acceleration (m/s^2)
    = Force (Newtons)

    If you want it in pounds, multiply Newtons by 0.225 lb/N

    1. 👍
    2. 👎
  2. 272.7

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    Use Newton’s first law of motion to explain how wearing a seat belt in a moving car could help prevent injury.

  2. physics

    the sensor in the torso of a crash-test dummy records the magnitude and direction of the net force acting on the dummy. if the dummy is thrown forward with a force of 130.0 N while simultaneously being hit from side with a force

  3. physics

    Seat belts and air bags save lives by reducing the forces exerted on the driver and passengers in an automobile collision. Cars are designed with a "crumple zone" in the front of the car. In the event of an impact, the passenger

  4. math

    a car is traveling at a speed of 30.0m/s encounters an emergency and comes to complete stop how much time will it take for the car to stop if it decelerates -4.o m/s^2

  1. physics

    Jennifer, who has a mass of 50.0 kg, is riding at 35.0 m/s in her red sports car when she must suddenly slam on the brakes to avoid hitting a deer crossing the road. She strikes the air bag that brings her body to a stop in 0.500

  2. AP Statistics

    The Problem: Slow response times by paramedics, firefighters, and policemen can have serious consequences for accident victims. IN the case of life-threatening injuries, victims generally need medical attention within 8 minutes of

  3. Microeconomics

    Suppose that flying a 200-seat plane across country costs the airline $100,000. Thus, the average cost of each sear is $500. A plane is about to take off with 10 empty seats. Astandby passenger is waiting at the gate willing to

  4. health

    A woman is brought into an emergency room after a severe automobile accident. She’s unconscious and badly injured. Her husband arrives at the emergency room at the same time as she arrives in the ambulance. The doctor explains

  1. Statistics

    In the United States, 43% of people wear a seat belt while driving. If two people are chosen at random, what is the probability that both of them wear a seat belt?

  2. math

    The London Eye is a large ferris wheel. Each sealed and air-conditioned passenger capsule holds about 25 passengers. The diameter of the wheel is 135 m, and the wheel takes about half an hour to complete one revolution. a)

  3. math

    A package is at rest on a conveyor belt, which is initially at rest. The belt is started and moves to the right for 1.3 s with a constant acceleration of 2 m/s^2 . the belt then moves with a constant deceleration a2 and comes to a

  4. physics

    Highway safety engineers build soft barriers so that cars hitting them will slow down at a safe rate. A person wearing a seat belt can withstand an acceleration of -300 m/s². How think should barriers be to safely stop a car that

You can view more similar questions or ask a new question.