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
nlexa [21]
3 years ago
14

Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initia

l velicity of +5800m/s, while Rocket B has an initial velocity of +8600m/s. After a time t both rockets are again side by side, the displacement of each being zero. The acceleration of rocket A is -15m/s^2. What is the acceleration of rocket B?
Physics
1 answer:
earnstyle [38]3 years ago
6 0

Answer:

The acceleration of rocket B is -22.24 m/s²

Explanation:

Two rockets are flying in the same direction and are side by side at the

instant their retrorockets fire

That means they started from the same point at the same time

Rocket A has an initial velocity of  5800 m/s

Rocket B has an initial velocity of 8600 m/s

After a time t both rockets are again side by side, the displacement of

each being zero

That means they are in the same position again → s = 0

The acceleration of rocket A is  -15 m/s²

We need to find the acceleration for rocket B

We can find the time from the information of rocket A by using the

rule → s = u t + \frac{1}{2} a t²

where s is the displacement, u is the initial velocity, a is the

acceleration, and t is the time

→ s = 0 , u = 5800 m/s , a = -15 m/s²

Substitute these values in the rule

→ 0 = 5800 t + \frac{1}{2} (-15) t²

→ 0 = 5800 t - 7.5 t²

Add 7.5 t² for both sides

→ 7.5 t² = 5800 t

Divide both sides by 7.5 t

→ t = 773.3 s

The time for the both rocket to have displacement zero is 773.3 s

Now we can find the acceleration of the rocket B by using the same

rule above

→ u = 8600 m/s , t = 773.3 , s = 0

→ 0 = (8600)(773.3) + \frac{1}{2} a (773.3)²

→ 0 = 6650380 + 298996.445 a

Subtract 6650380 from both sides

→ -6650380 = 298996.445 a

Divide both sides by 298996.445

→ a = -22.24 m/s²

<em>The acceleration of rocket B is -22.24 m/s²</em>

You might be interested in
Equation of uniformly accelerated motion​
Kruka [31]

Answer:

x₂ = x₁ + v₁t + at²/2

Explanation:

Right out of the textbook.

6 0
3 years ago
The spinning of earth on its axis causes the apparent rising and setting of the
rodikova [14]
Sun, moon, and some stars
4 0
3 years ago
Read 2 more answers
What is meant by the term fitness​
Artemon [7]

Answer:

An organisms ability to survive and reproduce in a particular environment.

4 0
3 years ago
Convert 0.000238 m to cm
enot [183]

Answer:

0.0238 centimetre

Explanation:

multiply the length value by 100

3 0
3 years ago
Why would a person who weighs 100 lbs. on Earth weigh significantly more on Ju-piter?
Nitella [24]

Answer:

Is a

Explanation:

8 0
3 years ago
Other questions:
  • Simon puts new batteries in his radio-controlled car and its controller. He activates the controller, which sends a radio signal
    10·1 answer
  • What is a superpositional principle
    7·2 answers
  • What is the amount of a certain isotope that occurs in a natural sample of an element
    6·2 answers
  • I need help with 3 question.
    5·1 answer
  • An object oscillates with an angular frequency of 8.0 rad/s. At t = 0, the object is at x0 = 4 cm with an initial velocity v0 =
    12·1 answer
  • A Force has a size and a(n)?
    10·2 answers
  • A small, single engine airplane is about to take off. The airplane becomes airborne, when its speed reaches 193.0 km/h. The cond
    6·1 answer
  • When ionic bonds form compound structures in a solid state, they arrange in latticed, crystalline patterns.
    15·1 answer
  • 4. Mr. Ames is dragging a box full of books from his office to his car. The box and books together have a
    11·1 answer
  • PLEASE HELP URGENT! this is a homework that is due today but I forgot to do it please help those 2 questions!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!