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
Alchen [17]
3 years ago
13

A rocket is launched at 85 ft./s from a launch pad that’s 28 feet above the ground. which equation can be used to determine the

height of the rocket at a given time after the launch? (answer choices in picture)

Mathematics
2 answers:
Fed [463]3 years ago
5 0

Answer:

The correct option is the last option

h(t) = 28 + 85t -16t ^ 2

Step-by-step explanation:

The kinematic equation to calculate the position of a body on the vertical axis as a function of time is:

h(t) = h_o + v_ot - \frac{1}{2}gt ^ 2

Where:

h_0 = initial position = 28ft

v_0 = initial velocity = 85 ft / s

g = acceleration of gravity = 32.16ft / s ^ 2

Then the equation sought is:

h(t) = 28 + 85t - \frac{1}{2}32.16t ^ 2

Finally:

h(t) = 28 + 85t -16t ^ 2

The correct option is the last option

Arlecino [84]3 years ago
3 0

Answer:

h(t)=-16t^2+85t+28 is equation of height of rocket at given time after the launch.

D is correct.

Step-by-step explanation:

A rocket is launched at 85 ft./s from a launch pad that’s 28 feet above the ground

We have an equation of rocket launching.

h(t)=\dfrac{1}2gt^2+v_ot+h_o

Where, g is acceleration due to gravity

v is initial velocity

h is initial height

h(t) is function of height at any time t

A rocket is launched by 85 ft/s

V_o=85\ ft/s

g=-32\ ft/s

h_o=28

Substitute the value into formula ans get formula

h(t)=-16t^2+85t+28

Hence, D is correct. Equation of height of rocket at given time after the launch.

You might be interested in
Answers to 1-6 please :)
nikitadnepr [17]
Question 1:
Perimeter = 18ft
area = 15ft²
Question 2:
Perimeter = 11m
Area = 7.5m²
4 0
4 years ago
What is the value of the 8th term of the sequence 4, 8, 16, 32, ...?
vladimir1956 [14]

Answer:

512

Step-by-step explanation:

The sequence is doing the number times 2, so 4 times 2 equals 8,

8 x 2 = 16, ect

If you do this enough, you will get 512 as the 8th term.

3 0
3 years ago
Read 2 more answers
Two finite sets have m and n elements . The total no. of subsets of the first set is 56 more than the total no.of subsets in the
lakkis [162]
If some set A has n elements, then it has 2^n subsets. 
Using that, the sentence, "The total number of subsets of ‘m’ is 56 more than the total number of subsets of ‘n’." gives you the equation 2^m - 2^n = 56 
Factor both sides: 2^n * (2^(m-n) - 1) = 2^3 * 7 
Since 2^n is a power of 2 and (2^(m-n) - 1) is an odd integer, we must have 2^n = 2^3 2^(m-n) - 1 = 7 
Solving these, you get n = 3 and m = 6.
5 0
3 years ago
What is the formula to find the area of a rectangle.
prohojiy [21]

area of rectangle= length × width

here I think I have to draw a rectangle (using insert you can easily get a rectangle)

6 0
3 years ago
Can someone please help
Len [333]
Find volume
v=(1/3)hpir^2
r=60
h=210
pi=3.14 for this questio
v=(1/3)(210)(3.14)(60^2)
v=(1/3)(210)(3.14)(3600)
v=(70)(3.14)(3600)
v=(70)(3.14)(3600)
V=791,280 cm3

rate of 1099 er hour

drained out is zero
amount drained total=volume of cone=1099 times number of hours
lets say number of hours=x
1099x

791,280=1099x
divide both sides by 1099
720=x

answe ris 720 hours

6 0
3 years ago
Other questions:
  • What is.3x^2 +x+2-4x^2(3x-4) equal to
    7·1 answer
  • What are the values of x and y when (3-2i)-(x+yi)=(2-3)?
    15·1 answer
  • What is the answer choice for that
    13·1 answer
  • A machine stamps 360 metal parts in 15 minutes. Find the unit rate in parts per minute. per minute
    13·2 answers
  • A sweatshirt is discounted 30%. If the discount is $9, what was the original price of the sweatshirt? Please show your work.
    11·1 answer
  • What size of the angle is being constructed ​
    5·1 answer
  • (PICTURE) please answer whatever you can Its really urgent
    9·1 answer
  • Tamika’s father gave her $50 to start her savings account. She deposited $15 in the account each month that
    14·1 answer
  • Please answer with explanation if nonsense answers I will report so please answer properly​
    6·1 answer
  • Write an equation in slope-intercept form (y=mx+b) for the line that has a slope of 12 and passes through the point (3, 20).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!