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
denis23 [38]
3 years ago
13

The displacement (in meters) of a particle moving in a straight line is given by the equation of motion

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
4 0

Answer:

  • -2/a³ m/s
  • -2 m/s
  • -1/4 m/s
  • -2/27 m/s

Step-by-step explanation:

The velocity is the derivative of position:

  v = ds/dt = (d/dt)(t^-2) = -2t^-3

For t=a, the velocity is

  -2a^-3 = -2/a³ . . . . meters per second

For t=1, the velocity is ...

  -2·1³ = -2 . . . . meters per second

For t=2, the velocity is ...

  -2·2^-3 = -2/8 = -1/4 . . . . meters per second

For t=3, the velocity is ...

  -2·3^-3 = -2/27 . . . . meters per second

You might be interested in
A regular polygon has sides all the same length, and angles all the same measure. Find the pelmeter of the regular polygon below
Ede4ka [16]

The perimeter of the regular polygon is 70 inches

<h3>How to determine the perimeter of the regular polygon?</h3>

The sides of the regular polygon is given as:

Side = 10 in

The regular polygon has 7 sides

So, the perimeter of the polygon is calculated as:

P = Side lengths * Number of sides

This gives

P = 10 inches * 7

Evaluate

P = 70 inches

Hence, the perimeter of the regular polygon is 70 inches

Read more about perimeter at

brainly.com/question/24571594

#SPJ1

6 0
1 year ago
Determine whether the statement is always, sometimes, or never true: Two points A and B determine a line. *
alisha [4.7K]

Answer:

sometimes

Step-by-step explanation:

8 0
3 years ago
I need help please?!!
Rasek [7]
Hope this helps have a nice day:)

3 0
3 years ago
1/4 (84x - 100)=?<br><br>I can't solve it! please help me!
slamgirl [31]
The answer is 21x-25 because all you have to do is multiply the 1/4 by the 84x and then multiply 1//4 by negative 100. A simpler way of explaining this is just that you need to distribute
4 0
3 years ago
X-5=17??????????????????
yKpoI14uk [10]

Answer:

x=21

Step-by-step explanation:

add 5 to both sides. it gives u 21

4 0
3 years ago
Other questions:
  • The decimal equivalent of the fraction 2/15 is____. The number of digits that should be overlined is___.
    15·2 answers
  • -UIVIT UUNNU INTEREST
    14·1 answer
  • Does anyone know this question
    7·2 answers
  • Write the expression as a single natural logarithm.<br> 2 ln m + 9 ln n=in?
    9·1 answer
  • Really need help here
    6·2 answers
  • What would -9 1/2 be as a decimal?
    15·2 answers
  • 2,t,6,5,3<br> if if the mean is 4 , which number could T be
    14·1 answer
  • -28xy - ( - 4yz ) - ( - 4yx ) - 2zy =
    8·1 answer
  • When money loses some of its value over time, it is caused by
    7·1 answer
  • I use 1/12 of my salary to pay for rates and taxes,1/16 to pay for insurance and 5/6 to meet other expenses. if i have r320 left
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!