Explain how thick should barriers be to safely stop a car

Assignment Help Physics
Reference no: EM13120551

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 -3.0 x 10^2 m/s^2. How thick should barriers be to safely stop a car that hits a barrier at 110 km/h?

Reference no: EM13120551

Questions Cloud

What is meant by variance power : What is meant by variance power? Suppose that a charitable foundation receives a gift that the donor specifies must be used to support the college education of a particular individual. Of what relevance is variance power to how the foundation acco..
How may ml of 0.450 n sodium hydroxide would be required : A vinegar sample contained 5.20 % acetic acid. How may mL of 0.450 N sodium hydroxide would be required to titrate 25.00 mL of the vinegar sample
Find probabbility that the mean score is below a value : The mean of major student taking the GRE test in 2010 was 1000 with a standard deviation of 230. if you select a random sample of 75 students, what is the probabbility that the mean score is below 950?
Algebra-bug problem : If it takes a colony of termites one day to devour a block of wood that is 2 inches wide, 2 inches long, and 2 inches high, then how long will it take them to devour a block of wood that is 4 inches wide,
Explain how thick should barriers be to safely stop a car : A person wearing a seat belt can withstand an acceleration of -3.0 x 10^2 m/s^2. Explain how thick should barriers be to safely stop a car that hits a barrier at 110 km/h?
Explain probability problem explained in solution : Probability Problem explained in this solution. Supose a pill exists with the property that one out of every 100 such pills contains a lethal amount of a substance, and that the other 99 are harmless. Caluclate how many people would be expected to..
Tax consequences to bluejay : What are the tax consequences to Bluejay and to Redbird as a result of Bluejay's liquidation?
What is the reason for the apparent inconsistency : A not-for-profit organization receives a restricted gift. When, and in which type of fund, should it recognize the revenue? When, and in which type of fund, should it recognize the related expense? What is the reason for the apparent inconsistency..
Evaluate what is the distance between the two dark fringes : Evaluate what is the distance between the two dark fringes on either side of the central bright fringe?

Reviews

Write a Review

 

Physics Questions & Answers

  What is the magnitude of the net gravitational force

A cement block accidentally falls from rest from the ledge of a 74.8-m-high building. When the block is 18.4 m above the ground, a man, 2.10 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have ..

  Express what is the light intensity on a wall

express What is the light intensity on a wall. How far does the ball drop vertically by the time it reaches the plate 18.0 m away.

  Ignore friction and the mass of the ropes

A heavy crate is attached to the wall by a light rope. Another rope hangs off the opposite edge of the box. If you slowly increase the force on the free rope by pulling on it in a horizontal direction, which rope will break? Ignore friction and th..

  How much work was done by friction on megan

Two horizontal forces, 249 N and 165 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to point to the direction of the net force.

  A suitcase drops out of the luggage compartment

Then find the force between them as a function of distance h. describe why the sign of the force does (or does not) make sense to you.

  What is the horizontal distance airplane engine falls

Vector A points in the negative y direction and has a magnitude of 3 units. Vector B has three times the magnitude and points in the positive x direction. Find out the direction and magnitude of the following vectors.

  Explain the events that occur as water molecules

A speed skater moving across frictionless ice at 8.4 m/ s hits a 5.2 m -wide patch of rough ice. She slows steadily, after that continues on at 6.3 m/s.

  What is the recoil speed of the nucleus

In one such decay, the electron and the neutrino are emitted at right angles to each other. The electron(mass 9.11 x 10^-31kg) has a speed of 5.00×10^7m/s and the neutrino has a momentum of 8.10×10^-24kg m/s. What is the recoil speed of the nucleu..

  What is the current in the cell throughout that period

A gun shoots bullets that leave the muzzle at 213m/s. If a bullet is to hit a target 160.4m away at the level of the muzzle, the gun must be aimed at a point above target. (Neglect air resistance.)

  What horizontal distance does it cover throughout its flight

While the dried up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.4 m/s at an angle of 60° above the horizontal.

  What is the increase in temperature of the bullet

A 25 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 18 C in an insulated cup. What will the new water temperature be.

  What will happen if heat is added to the water

If no, then what will happen if 30 kilocalories of heat is added to the water? Give a numerical result as part of your answer.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd