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
muminat
3 years ago
10

The formula for the height of a ball as a function of time is given by the equation h = -16t^2 + vt + h, where h is the height o

f a ball in feet, v is the initial velocity of the ball in feet per second, h is the initial height of the ball in feet, and t is the time in seconds after the ball was thrown.
If a ball is thrown from an initial height of 5 feet at an initial velocity of 20 feet per second, what is its height after 1 second?
Mathematics
1 answer:
yawa3891 [41]3 years ago
8 0
It's really poor form to use 'h' to mean two different things in two different
places in the same formula.  Fortunately, we know what you mean.

H = h + vt - 16t²

<span>You have said that ...
initial height = 5 feet
initial velocity = 20 feet per second, no direction given
time = 1 second</span>

Since you gave us the magnitude of the initial velocity but not its direction,
there are a huge number of possibilities.  I'll focus only on two of them: 
20 feet per second straight down, and 20 feet per second straight up.

<em><u>Initial velocity is downward:</u></em>
H = (5) + (-20) (1) - 16 (1)²
H = 5 - 20 - 16 = 5 - 36 = <u>31 feet underground</u> after 1 second

<em><u>Initial velocity is upward:</u></em>
H = (5) + (20) (1) - 16 (1)²
H = 5 + 20 - 16 = 25 - 16 = <u>9 feet above ground</u> after 1 second





You might be interested in
Select the correct answer.
melomori [17]
D.
y= 4x+3


When multiply the X’s with four and then adding three gets the Y’s.
For example 4•10=40+3 equals 43 therefore it’s ( 10, 43 )
4 0
3 years ago
Read 2 more answers
Pls help me this is a huge packet
Darina [25.2K]

Is there only choices A and B?

From the choices I can see you don’t even have to do any work. The equation starts with (y =). This indicates you will be working with the y intercept. The y intercept is simply where the line crosses on the y axis. In this graph, the y intercept is 2.5. Out of your choices (A and B that I can see) only one contains + 2.5.

B is your answer UNLESS there are choices c and d that are cut out.

4 0
3 years ago
What is the scale factor from small triangle to the larger triangle
Lyrx [107]

Answer:

scale factor = 3

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, larger to smaller.

scale factor = \frac{BC}{TB} = \frac{12}{4} = 3

7 0
2 years ago
-4.6+5.3 help please thank you are the best
fomenos

Answer:

0.7

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
HELP ME PLEASE!!!!!!
gladu [14]

Answer:

6x²y²

Step-by-step explanation:

6: 1 2 3 6

18: 1 2 3 6 9 18

36: 1 2 3 4 6 9 12 18 36

the common factor for 6 18 and 36 are

1 2 3 6

x² = x × x

y³ = y × y × y

x³ = x × x × x

y³ = y × y × y

x³ = x × x × x

y² = y × y

the common factor are for x and y are

x² y²

Multiply the GCF of the numerical part 6 and the GCF of the variable part x² y² to get 6x² y²

5 0
2 years ago
Other questions:
  • Evaluate A = bh, for b = 8 and h = 4.
    6·2 answers
  • The sum of two numbers is -12 one number is 3 less than twice the other what is the bigger number
    5·1 answer
  • I have to lose 68 pounds.3500 calaories in each pound.I have to lose 2pounds a week.how many weeks would it take and how many ca
    6·1 answer
  • What number has 10 tens 0 ones?
    14·1 answer
  • A survey taken in a large statistics class contained the question: "What's the fastest you have driven a car (in miles per hour)
    7·1 answer
  • If Jeremy puts 200$ down and pays 35$ per month for 24 months, how much will the computer cost?
    14·2 answers
  • A baseball is thrown in a parabolic arch
    7·1 answer
  • Which expression is equivalent to 23+ (15+22) by the associative property of addition?
    14·1 answer
  • I need help with number 6
    8·1 answer
  • If A : B = 5 : 8 and B : C = 4: 3, A : B : C =??​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!