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
Helga [31]
2 years ago
6

Bob shoots off a small rocket from the balcony of his apartment. The balcony is 30 ft above the ground and the rocket travels at

40 ft/second. When does it reach the highest point? What is the highest point? When does it hit the ground (seconds)?
Mathematics
1 answer:
frutty [35]2 years ago
6 0

From the calculations;

  • The highest point above the ground is 112 feet
  • The time taken to reach this height is 8 seconds

<h3>Equations of motion</h3>

The equations of motion are used in kinematics to obtain the various variables that has to do with motion.

In this case;

distance covered = 30 ft

initial velocity = 40 ft/second

Final velocity = 0 m/s at the maximum height

Hence;

v^2 = u^2 - 2gh

since v = 0

u^2 = 2gh

h = u^2/2g

h = (40)^2/2(9.8)

h = 82 feet

highest point above the ground = 82 feet + 30 feet = 112 feet

Now;

v = u - gt

since v = 0

u = gt

t = u/g

t = 40/9.8

t = 4 seconds

Time taken to hit the ground = 2(4 seconds) = 8 seconds

Learn more about kinematics:brainly.com/question/27126557

You might be interested in
Please help me! You just tell me what to put in the boxes please,
olganol [36]

Answer:

what boxes? XD  need a link to da picture UWU

Step-by-step explanation:

8 0
3 years ago
What is the relationship between sin(90 degrees) and sin(-90 degrees)
Volgvan

Answer:

sin(90\°)=-sin(-90\°)

Step-by-step explanation:

we know that

sin(90\°)=1

sin(-90\°)=-1

therefore

sin(90\°)=-sin(-90\°)

4 0
3 years ago
Light travels about 186,000 mi/s, the function d(t)=186,000 gives the distance in miles that light travels in T seconds , how fa
I am Lyosha [343]
Light travels 5,580,000 mi/s in thirty seconds
4 0
3 years ago
Help please! This is timed! 50 points
kiruha [24]

Answer:

24.96%

Step-by-step explanation:

HOPE I WAS FAST ENOUGH

7 0
3 years ago
Read 2 more answers
Answer correctly please
Paul [167]

Answer:

\$272,49

Step-by-step explanation:

7. \displaystyle /text{The answer makes sense because since the depreciation rate is 15%, we know that we need to use the "exponential decay" formula.}

6. \displaystyle /text{After a depreciation rate of 15% for the past 8 years, the stock is now worth approximately $272,49.}

5. \displaystyle 1000[0,85]^8 = 272,490525 ≈ \$272,49

4. \displaystyle 1000 = a \\ -15\% + 100\% = 1 - r; 85\% = 1 - r \\ 8\:years = time\:[t]

3. \displaystyle /text{We need to use the "Exponential Decay" formula} - f(t) = a[1 - r]^t, where a > 0

2. \displaystyle /text{How much is the stock worth after a depreciation rate of 15% per year?}

1. \displaystyle /text{initial amount: $1000, a depreciation rate of 15%, and a time period of 8 years}

I am joyous to assist you anytime.

5 0
3 years ago
Other questions:
  • Here comes one more from me :<br> 0,0,0,3,20,115,__.<br> next number?
    15·1 answer
  • 14 minus the quotient of 25 and p
    6·1 answer
  • How can you tell an equation is linear? Example: 22x-14y=65
    7·1 answer
  • What are the solutions of x^2-4x-9=29
    15·2 answers
  • Mauricio wants to fry 18 potatoes per hour for 3.5, point, 5 hours. He can fry 6 potatoes using each gallon of oil. How many gal
    15·2 answers
  • Factor the expression 84+28
    9·1 answer
  • Find the area of the trapezoid. If the answer is not an integer, leave it in simplest radical form. The figure is not to scale.
    14·1 answer
  • Can someone please help for brainlest
    9·2 answers
  • 11x - 4 = 20 Solve for x
    8·2 answers
  • A bicycle is traveling at 12 miles per hour. How many feet will it cover in 30 seconds?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!