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
The experimental probability that a person in the unites states has a+ blood type is 35.7%. the experimental probability that a
skad [1K]
ANSWER: 34% more A+ donations because it is most common type of blood type more than ab-. ( PLEASE MARK BRAINLIEST)
3 0
2 years ago
Read 2 more answers
Penny received an unexpected $5,000.00 gift from a distant relative. She invests it in a mutual fund that increases the value of
dusya [7]

Answer:

Penny would need to put in ~ $18,181.82

Step-by-step explanation:

Using the equation A = P(1+rt)

Where A = the total

P is equal to the starting amount

r is equal to the rate (percent)

and t is equal to the total time.

We can put in:

A = $40,000

r = 0.08 (8%)

t = 15

40,000 = P(1 +(0.08* 15))\\40,000 = P(1+1.2)\\40,000 = P(2.2)\\\frac{40,000}{2.2} = P\\ \frac{200,000}{11} = P\\P = $18181.8181818181...

Round to the nearest whole cent

P = $18,181.82

3 0
2 years ago
Write down the equation for the following expression and then solve it.
Tems11 [23]

Answer:

x = 24

Step-by-step explanation:

x - (3 · 4) = 12

x - 12   =     12

  + 12      + 12

x = 24

6 0
2 years ago
Read 2 more answers
X= [ ? ]°<br> 104°<br> 1170<br> 1249<br> 100°
NikAS [45]

Answer:

okkkkkkkkkkkkkkkkkkkkkkkkkkk

8 0
2 years ago
Read 2 more answers
What are the corresponding steps used to find the product of (2x + 1)(x + 1)?
Margarita [4]

Answer:

(2 x +1) ( x + 1)  = 2 x² + 3 x + 1

Step-by-step explanation:

The steops used to find the product of (2 x + 1) (x + 1) are

 =( 2 x )× x + (2 x) × 1 + x + 1

 = 2 x² + 2 x + x + 1

 = 2 x² + 3 x + 1

4 0
3 years ago
Other questions:
  • What is the answer to 3 divided by 74 in partial products
    14·1 answer
  • What is the y-intercept of the line y = 2x + 6?
    14·2 answers
  • what is the missing number? imput B;4,12,16,24,32,40. output A:8,16,20,_,_ rules a=b+4. SUPER URGENT !!!!!!!!!!
    12·1 answer
  • Arrange the equations in the correct sequence to rewrite the formula for displacement, d = vt—1/2at^2 to find a. In the formula,
    14·1 answer
  • Plss help ill give 15 points and brainliest
    12·1 answer
  • A fundraiser lottery draws two winners each month from 50 tickets numbered one through 50 Margaret always puts her age 34 on her
    8·1 answer
  • What is the value of the expression below? 2³(3³ – 6) +4 A. 214 B. 172 C. 28 D. 200​
    7·2 answers
  • If someone can help :)
    14·2 answers
  • IF YOU DON'T KNOW THE ANSWER THEN DON'T PUT ONE
    15·2 answers
  • Let F(x)=3x-1 and g(x)=×+2. Findf(g(x)) and g(f(x))
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!