The car crash in which the car is moving at higher speed will cause catastrophic injuries whereas the car moving at smaller speed will cause minor injuries. This is due to the law of inertia of the bodies.
Explanation:
The inertia of a body is defined as the resistance of the body towards any change in its current state of rest or motion. The body does not want to change its state and this resistance of the body is directly proportional to the mass of the body.
According to the law of inertia, a body continues to be in its state of rest or motion until and unless an external force acts on the body.
A car moving at a higher speed and having a higher mass is considered to have higher inertia of motion and therefore when it crashes, it experiences a very high stopping force and due to this, the injuries caused in the car crash will be very catastrophic.
Whereas, if the same car is moving at a lower speed, the inertia of motion of the car will be less and when this car crashes, it will experience a smaller force and comes to rest. Due to this, the injuries caused in the crash will be minor.
Thus, The car crash in which the car is moving at higher speed will cause catastrophic injuries whereas the car moving at smaller speed will cause minor injuries. This is due to the law of inertia of the bodies.
Learn More:
1. Which one remains constant in uniform circular motion brainly.com/question/2562955
2. The unit of the gravitational constant brainly.com/question/1724648
3. The x-component of the given vector brainly.com/question/2562517
Answer Details:
Grade: High School
Subject: Physics
Chapter: Laws of motion
Keywords:
natural laws, law of inertia, mass, speed, car crash, minor injuries, catastrophic, bodies, rest or motion, state, inertia of motion.
B. Give explanations for natural events
C. Make predictions
D. Produce unchanging, absolute answers
a. True
b. False
Answer : The given statement is True.
Explanation -
Nuclear fusion is a thermonuclear reaction in which light stable nuclei combine with each other in order to form a heavy stable nucleus with the release of large amount of energy.
In case of stars, four hydrogen nuclei combine with each other to form a helium nucleus with a release of 26 Mev per cycle.
Thus, nuclear fusion occurs in stars is true statement.
b. weapons
c. powering submarines
d. all of the above
Answer:
D. All of the above. you're welcome
-they are lubricants
-they increase friction
-the reduce static electricity
Answer:
the pressure difference will be ΔP= P₂ - P₁ =29348.64 Pa
Explanation:
from Bernoulli's equation
P₁ + ρgh₁+ 1/2ρv₁²= P₂ + ρgh₂+1/2ρv₂²
where P = pressure , ρ= density , g= gravity , h= height , v=flow speed and 1 and 2 denote first and second segment respectively
then since the pipe is horizontal there is no difference in height (h=h₁=h₂) , thus
P₁ + 1/2ρv₁²= P₂ + 1/2ρv₂²
the pressure difference ΔP= P₂ - P₁ will be
ΔP= P₂ - P₁ = 1/2ρv₁² - 1/2ρv₂² = 1/2*ρ* (v₁² - v₂²)
replacing values
ΔP= 1/2*ρ* (v₁² - v₂²) = 1/2 *1145 kg/m³ * [(7.33 m/s)² - (1.57 m/s)²] = 29348.64 Pa
ΔP= 29348.64 Pa