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
Yakvenalex [24]
4 years ago
13

Draw motion diagrams for (a) an object moving to the right at constant speed, (b) an object moving to the right and speeding up

at a constant rate, (c) an object moving to the right and slowing down at a constant rate, (d) an ob- ject moving to the left and speeding up at a constant rate, and (e) an object moving to the left and slowing down at a constant rate. (f) How would your drawings change if the changes in speed were not uniform, that is, if the speed were not changing at a constant rate?

Physics
1 answer:
fredd [130]4 years ago
7 0

Answer:

Explanation:

We have two types of diagrams those of displacement against time (x -t) and those of velocity against time (v-t)

In the attacheds you can see the drawings, they are not to scale

a)  In this case the velocity is constant we can see that the graph of x-t is a straight line where the slope is the value of the velocity x = v t

b)  In the second case the body accelerates x = ½ a t², in the diagram in the graph of x-t it is a parabolic curve and in the graph of v-t we have a line whose slope is the acceleration

c)  In the third case the body is braking, again in a diagram of x-t we have a parabola and of v-t a line, but with negative slope

d)  This situation is similar to case b, but on the negative side of the x-axis, see case a diagram

e) Similar case b

f)   If the velocity does not change uniformly, we cannot use the above formulas since they all assume uniform acceleration even at intervals where it can have different values

You might be interested in
What action happens if the moon spins on its axis like a top
Ugo [173]

amos duhh_leand.............................

3 0
3 years ago
A uniform electric field is created by two parallel plates separated by a distance of 0.04 m. What is the magnitude of the elect
FromTheMoon [43]

Complete question:

A uniform electric field is created by two parallel plates separated by a

distance of 0.04 m. What is the magnitude of the electric field established

between the plates if the potential of the first plate is +40V and the second

one is -40V?

Answer:

The magnitude of the electric field established between the plates is 2,000 V/m

Explanation:

Given;

distance between two parallel plates, d = 0.04 m

potential between first and second plate, = +40V and -40V respectively

The magnitude of the electric field established between the plates is calculated as;

E = ΔV / d

where;

ΔV is change in potential between two parallel plates;

d is the distance between the plates

ΔV = V₁ -V₂

ΔV = 40 - (-40)

ΔV = 40 + 40

ΔV = 80 V

E = ΔV / d

E = 80 / 0.04

E = 2,000 V/m

Therefore, the magnitude of the electric field established between the plates is 2,000 V/m

7 0
3 years ago
Light-rail passenger trains that provide transportation within and between cities are capable of modest accelerations. The magni
Mkey [24]
During the first phase of acceleration we have:
v o = 4 m/s;  t = 8 s; v = 13 m/s, a = ?
v = v o + a * t
13 m/s = 4 m / s + a * 8 s
a * 8 s = 9 m/s
a = 9 m/s : 8 s
a = 1.125 m/s²
The final speed:
v = ?;  v o = 13 m/s; a = 1.125 m/s² ;  t = 16 s
v = v o + a * t
v = 13 m/s + 1.125 m/s² * 16 s
v = 13 m/s + 18 m/s = 31 m/s 
3 0
3 years ago
A branch falls from a tree how fast is the branch moving after drug .28 seconds
alexdok [17]
Acceleration=9.81m/s^2
initial velocity=0m/s
time=.28s

We have to find final velocity.

The equation we use is

Final velocity=initial velocity+acceleration x time

Vf=0m/s+(9.81m/s^2)(.28s)
Vf=2.7468m/s

We would round this to:

Vf (final velocity)=2.7m/s
6 0
3 years ago
Two pure tones are sounded together. The drawing shows the pressure variations of the two sound waves, measured with respect to
amm1812

Answer:

4.13Hz

Explanation:

f1 = 1/t1 = 1/0.022 = 45.45 Hz

f2 = 1/t2 = 1/0.0242= 41.32 Hz

No. of beats

= 45.45- 41.32

~ 4.13Hz

7 0
3 years ago
Other questions:
  • As the bullet flies through the air it is affected by which of the following forms of force?
    10·1 answer
  • A car going 50 miles/hr accelerates to pass a truck. 5 seconds later the car is going 80 miles/hr. What is the acceleration of t
    14·1 answer
  • Emotional elevation only occurs in animal kin groups. true or false
    15·2 answers
  • An antitussive is a A. non-productive cough. B. cough-suppressant medication. C. cough medication used for drying up secretions.
    12·2 answers
  • What quantity of heat is required to change 20g of ice at -25°c to steam at 120°c
    5·1 answer
  • car accelerates from 10m/s to 25m/s in 6.0s what is its acceleration? how far did it travel in this time? assume constant accele
    6·1 answer
  • Multiple Select
    6·2 answers
  • Examine the scenario.
    14·2 answers
  • What will be the mass of a body at the center of the earth as compared to other places on
    11·2 answers
  • Rotational speed refers to the number of complete _____ in a given amount of time.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!