1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ale4655 [162]
3 years ago
12

To cut down on injuries, a highway guardrail is designed to be moved a maximum of 0.05 meters when struck by a car. What is the

value of the force constant of the material in the guardrail if it is to withstand the impact of a 1250-kg car traveling at 4.16 m/s ?
Physics
1 answer:
White raven [17]3 years ago
8 0

Answer:

216.32kN

Explanation:

Force can be expressed according to the formula;

Force = mass ×acceleration

Given

Mass = 1250kg

Velocity = 4.16m/s

Distance = 0.05m

We can get the acceleration first using the equation of motion

v² = u²+2as

4.16² = 0²+2a(0.05)

17.3056 = 0.1a

a = 17.3056/0.1

a = 173.056m/s²

Get the force required

Force = 1250×173.056

Force = 216,320N

Force = 216.32kN

Hence the force constant of the material is 216.32kN

You might be interested in
A scientist is studying a shock wave from an earthquake. What kind of wave is being studying?
Pavel [41]

Answer:

Longitudinal Mechanical Wave

Explanation:

Mechanical waves are the waves that require medium to propagate. And a longitudinal wave is a wave in which the vibration of the energy(here: mass specifically) is in the direction of propagation of wave.

Shock wave, strong pressure wave in any elastic medium such as air, water, or a solid substance, produced by supersonic aircraft, explosions, lightning, or other phenomena that create violent changes in pressure.

Shock waves travel faster than sound and their speed increases as the amplitude of the wave is increased but their intensity fades faster due to the fact that some of its energy gets expended in the form of heat due to the resistance of the medium.

3 0
3 years ago
Muscular Strength exercises focus on high______and low___
Advocard [28]

Answer:

d d d d dd d d d d d dd d d d d dd d

4 0
3 years ago
Help me plssssss will give brainliest if correct
Lina20 [59]

Answer:

electricity is the answer

3 0
3 years ago
Read 2 more answers
Biofuels and nuclear power may prove useful as _________.
Papessa [141]
As oil ,coal ,gas ,solar ,wind and water power
5 0
4 years ago
If Earth were replaced by an object with the same mass but much smaller in size, would the moon continue to orbit the new object
Tanzania [10]
I am pretty sure but not 100% that it would still continue to orbit
3 0
3 years ago
Read 2 more answers
Other questions:
  • Hey, what is antimatter
    6·2 answers
  • A satellite completes one revolution of a planet in almost exactly one hour. At the end of one hour, the satellite has traveled
    9·1 answer
  • Velocity which stone gains when falling from height of 80 m is approximately equal to *
    11·1 answer
  • Determina el trabajo realizado al desplazar un bloque 3 m sobre una superficie horizontal, si se desprecia la fricción y la fuer
    10·1 answer
  • A spring scale hung from the ceiling stretches by 5.2 cm when a 2.0 kg mass is hung from it. The 2.0 kg mass is removed and repl
    6·2 answers
  • How many neutrons does potassium have?
    11·2 answers
  • Hey idk what to do anymore. I am just about to give up and I feel like just running off to the woods and live alone at least I c
    12·1 answer
  • How do oxygen and beryllium atoms transform into oxygen ion O2- and Be2 beryllium ion Be2? tysm
    9·2 answers
  • A footballer kicks a ball at an angle of 45° with the horizontal. If the ball was in the air
    10·1 answer
  • How much energy is required to take 500g of ice at -40 degrees to water at room temperature (22 degrees Celsius)? Show work pls
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!