Physics

posted by .

A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 "'s."

What distance is traveled if the person is brought to rest at this rate from 115 ?

  • Physics -

    a = 30gs = 30 * 9.8m/s^2 = -294 m/s^2.

    Vo=115km/h*1000m/km*1h/3600s=31.94m/s.

    V^2 = Vo^2 + 2a*d.
    d = (V^2-Vo^2)/2a.
    d = (0-1020.4)/-588 = 1.74 m.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics 12

    A human has a reasonable chance of surviving an automobile crash is the body's deceleration is no more than 30 "g's". (1 "g" is 9.8 m/s^2) Calculate the force the body would have withstand decelerating at this rate. What is the distance …
  2. Physics

    A human has a reasonable chance of surviving an automobile crash if the body's deceleration is no more than 30 "g's". (1 "g" is 9.8 m/s^2) Calculate the force the body would have withstand decelerating at this rate. What is the distance …
  3. Physics check

    A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 "g's" (recall that g = 9.8 m/s2). Calculate the force, in N, on a 68 kg person accelerating at this rate. 30"g" x 9.8 294 ms^2 …
  4. AP Physics - Linear Momentum

    During a Chicago storm, winds can whip horizontally at speeds of 100 km/h. If the air strikes a person at the rate of 40 kg/s per square meter and is brought to rest, estimate the force of the wind on a person. Assume the person is …
  5. Science

    An occupant of a car has a chance of surviving a crash if the deceleration during the crash is not more than 30 g. Calculate the force on a 70 kg person deceleerating at the same rate.
  6. physics

    A car of mass 1200kg travelling @ 72 km/h is brought to rest in 4s and has a deceleration of 5m/s find the distance moved during the deceleration
  7. Statistics

    For the overall population, the IQ scores follow the normal distribution with mean equal to 100 and variance equal to 225. What is the best answer?
  8. College Physics

    A person who is properly constrained by an over-the shoulder seat belt has a good chance of surviving a car collision if the deceleration does not exceed about 30 "g"s (1.0 g= 9.8m/s^2) Assumind uniform deceleration of this calue calculate …
  9. Physics

    A person who is properly constrained by an over-the-shoulder seat belt has a good chance of surviving a car collision if the deceleration does not exceed about 30 "'s". Assuming uniform deceleration of this value, calculate the distance …
  10. Physics

    Problem: A person has a reasonable chance of surviving an automobile crash if the deceleration is no more than 30 "g's. Part A: Calculate the magnitude of the force on a 71-kg person accelerating at this rate. Answer=> F= 2.09x10^4 …

More Similar Questions