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
Likurg_2 [28]
2 years ago
12

Write a paragraph of no less than five sentences explaining how Newton's First Law of Motion supports people's need to wear seat

belts when riding in a moving car. Remember to use proper grammar and mechanics when writing your paragraph.
Physics
1 answer:
Inessa [10]2 years ago
7 0
Newton's first law can be taken to mean that if something is moving it tends to keep moving. if at rest it tends to stay at rest.

so, in a car, you and the car are both moving, say at constant speed. Now you're not actually connected to the car as in clamped to it, not yet at least. You're simply sitting in it at rest with respect to it.

but, someone slams on the brakes for whatever reason. The car slows down/stops. what do you do ? well, you would keep going. and moving a few feet in a car can be dangerous, esp if you're moving at high speed. Unless of course you're clamped to the seat, and the seat is clamped to the car and the car is clamped together. then when the car brakes, yes you'll feel the braking effect, but the belt will restrict your movement, keeping you safe, if shocked and bruised.
You might be interested in
In the absence of a gravitational force, the weight of a body is?
azamat

Answer:

0

Explanation:

Weight = mass x gravity

if gravity = 0 then Weight =0 as well

5 0
2 years ago
The bending of waves such as sound waves, light waves, and waves in water, around obstacles or the edges of openings is called.
kolezko [41]

Answer:

Diffraction

Explanation:

Diffraction is the bending of waves around obstacles and openings. The amount of diffraction increases with increasing wavelength.

4 0
8 months ago
If you are holding a book and you let go of it, why does it fall? Explain in terms of forces, potential energy, and kinetic ener
inessss [21]

Answer:

Let the mass of the book be "m", acceleration due to gravity be "g", velocity be "v" and height be "h".

Now if we are holding a book at a certain height (h), <em><u>the potential energy will be maximum which is equal to mass× acceleration due to gravity× height (= mgh)</u>.</em>

(Remember: kinetic energy =0)

Now we consider that the book is dropped, in this case a force will act downward towards the centre of the earth, <em><u>Force= mass× acceleration due to gravity (F=mg)</u></em>. It is equal to the weight of the book.

While the book is falling, the potential energy stored in the book converts into kinetic energy and strikes the floor with <em><u>the maximum kinetic energy= (1/2)×mass×velocity² (=1/2mv²)</u>.</em>

(Remember: kinetic energy=0)

Due to this process the whole energy is conserved.

As the potential energy decreases kinetic energy increases.

3 0
2 years ago
A person is standing on a scale in an unmoving elevator. The elevator starts to move upwards at 1 m/s squared. Is the scale read
timama [110]

Answer: GREATER

Explanation:when elevator does not move it reads weight of the person . when elevator moves up let apparent weight be F . W acts downwards so net force is F-W

HENCE

F-W =ma

F= ma+W

AS a= 1 m/s^2

F = m (1)+W

HENCE GREATER

7 0
2 years ago
A paintball’s mass is 0.0032kg. A typical paintball strikes a target moving at 85.3 m/s.
vekshin1

Answer:

A)  If the paintball stops completely the magnitude of the change in the paintball’s momentum is  p=0.273kg*m/s

B) If the paintball bounces off its target and afterward moves in the opposite direction with the same speed, the change in the paintball’s momentum is  p=0.546kg*m/s

C) A paintball bouncing off your skin in the opposite direction with the same speed hurts more than a paintball exploding upon your skin because of the strength exerted is twice than if it explodes.

Explanation:

Hi

A) We use the formula of momentum p=mv, so we have p=0.0032kg*85.3m/s=0.273kg*m/s

B) We use the same formula above, then due we have a change of direction at the same speed, therefore the change in the momentum is the double so

p=2*0.0032kg*85.3m/s=0.546kg*m/s.

C) The average strength of the force an object exerts during impact is determined by the amount the object’s momentum changes. therefore

F=\frac{\Delta p}{\Delta t}, as we don't have any data about the impact time but we know momentum is twice, time does no matter and strength is twice too.

4 0
3 years ago
Other questions:
  • A car speeds up as it rolls down a hill. which is this an example of? positive acceleration negative acceleration relative veloc
    10·2 answers
  • Unless indicated otherwise, assume the speed of sound in air to be v = 344 m/s. A stationary police car emits a sound of frequen
    11·1 answer
  • Express 68 rations in dekarations
    12·1 answer
  • This image shows a stream of positively charged particles being directed at gold foil. The positively charged particles are call
    13·2 answers
  • Read the following experiment. Describe the experiment's results; identify which of Newton's laws is illustrated and how these r
    8·1 answer
  • Two hoops, starting from rest, roll down identical inclined planes. The work done by nonconservative forces, such as air resiste
    12·1 answer
  • Demand for a certain product is forecast to be 800 units per month, averaged over all 12 months of the year. The product follows
    7·1 answer
  • If the velocity of an object changed from 30 m/s to 60 m/s over a period of 10 seconds what would the average acceleration be ?
    14·1 answer
  • Someone please help me...
    8·1 answer
  • A stone is thrown vertically upwards. It decelerates at a rate of 9.8m/s. It reaches a greatest
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!