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
arlik [135]
3 years ago
10

Free fall reaches 216km per hour. What is rate in meters per second.? How many meters fall during 20 seconds free fall?

Mathematics
1 answer:
lakkis [162]3 years ago
4 0

Given,

Rate of free fall = 216 km/h

Solution,

km/h to m/s is converted as follows :

216\ \dfrac{km}{h}=216\times \dfrac{1000\ m}{3600\ s}\\\\=60\ m/s

So, the rate of fall is 60 m/s.

If t = 20 s

Assume, initial velocity = 0

It will move under the action of gravity.

Using equation of motion,

h=ut+\dfrac{1}{2}gt^2\\\\h=0+\dfrac{1}{2}\times 10\times 20^2\\\\h=2000\ m

Hence, this is all for the solution.

You might be interested in
What is the solution to the equation 3/<br> x+4+3/2x+8 = 0?
mixas84 [53]

Answer:

X= -4

Step-by-step explanation:

^ you have to isolate the radical than raise each side to the power of its index which gets you

x= -4

5 0
3 years ago
Solve the system of equations<br> −4x+3y=−2 <br> y=x−1 ​ <br><br> x = <br> y =
dolphi86 [110]
Answer: x = -1 and y = -2

Step-by-step explanation:

So if you know y = x-1 you can plug that in where y is in the first equation

-4x + 3(x-1) = -2

Distribute the 3:

-4x +3x -3 = -2

Combine like terms:
-x -3 = -2

Add 3 to both sides:
-x = 1

Multiply by -1:
X = -1

Then you plug that into the other equation to get y=(-1)-1

Which is -2
4 0
3 years ago
Please help me with this
julsineya [31]
X is 19 and y is 84.
3 0
3 years ago
Read 2 more answers
Can someone help me with #10 please
Aleksandr [31]

X=11 because 90-43+5x-8 so 5•11=55-8 =47 90-43=47

8 0
4 years ago
Read 2 more answers
The equation of a circle is (x - 3)^2 + (y + 2)^2 = 25. The point (8, -2) is on the circle.
Jlenok [28]
From the equation, you can see that (3,-2) is the center of the circle (the terms are 0 for those x,y values). The mentioned point has the same y value as the center. That's good news, because it tells us that the tangent line is exactly vertical. The x coordinate is given as x=8. Vertical lines have an equation of x=... so x=8 is the right answer.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve using substitution. Please show work~
    9·1 answer
  • How do you write 604 in expanded form
    8·2 answers
  • Write a trinomial expression equivalent to (2x+5)(3x-2)
    6·2 answers
  • In the equation 6x-2 = -4x + 2, Spencer claims that the
    7·2 answers
  • Three consecutive numbers when added make together 21?
    9·2 answers
  • How do you solve <br><img src="https://tex.z-dn.net/?f=%20-%204x%20%2B%2039%20%20%5Cgeqslant%20%20-%2029" id="TexFormula1" title
    10·1 answer
  • There are 40 nickels in a roll. If you have 250 rolls of nickels, how many nickels do you have?pls help me
    7·2 answers
  • Happy kids charge $19.00 plus $1.50 per hour to keep a kid during the day. Fun city charges $14.00 plus $2.75 per hour. Write an
    9·2 answers
  • a casino has 10 slot mahcines. 8 are wheel of fortune themed, 2 are jeopardy themed. you don’t know whch is which. a wof machine
    5·1 answer
  • 7. If U= {2, 4, 6, 8, 10, 12, 14, 16} and<br> A = {6, 10, 14}, what is A'?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!