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
djyliett [7]
3 years ago
7

In the movie Speed, a bus already moving faster than 55 mph will explode if the bus’ speed falls below 55 mph. Let say that the

bus is already moving at 80 mph when Sandra Bullock (the bus driver) passes out and her foot falls off the accelerator. 30.0 seconds later, the bus explodes. How far did the bus move after our girl Sandy passed out? Please answer in meters!
Physics
1 answer:
kompoz [17]3 years ago
7 0

Answer:

The bus moved after our girl Sandy passed out = S = 905.04 m

Explanation:

At  t = 0 sec              Vi = 80mph = 35.76 m/s

    t = 30 sec             Vf = 55mph = 24.58 m/s

According to the first equation of motion

                   <u>Vf = Vi + at</u>

        24.587 = 35.76 + a(30)

        a  =  - 0.373 m/s2 (negative sign shows deceleration)

 Now for distance travelled in 30 sec we have

second equation of motion

                <u>  S=Vit+1/2at2</u>

        S = 35.76 x 30 + 1/2 x -0.373 x 30 x 30

         S = 905.04 m

You might be interested in
A train accelerates from 23m/s to 190m/s in 54 seconds. What was its acceleration?
Ierofanga [76]

Answer:

Use the method on the image and solve it.

3 0
3 years ago
Why is a specimen smaller than 200 nm not visible with a light microscope?
kifflom [539]
Because the specimen is very small with a light microscope
8 0
2 years ago
A man on the moon throws a ball vertically upwards and it is noticed that the ball travels 3.0m less in the fifth second of its
sdas [7]
<h2>Acceleration due to gravity in moon is 1.5 m/s²</h2>

Explanation:

We have equation of motion s = ut + 0.5 at²

Here the ball travels 3 m less distance in fifth second compared to third second.

That is

           s₃ = s₅ + 3

Now we have

Distance traveled in third second, s₃ = u x 3 - 0.5 x g x 3² -  u x 2 - 0.5 x g x 2²

           s₃ = u - 2.5 g

Also

Distance traveled in fifth second, s₅ = u x 5 - 0.5 x g x 5² -  u x 4 - 0.5 x g x 4²

           s₅ = u - 4.5 g    

That is

           u - 2.5 g = u - 4.5 g + 3

             2 g = 3

                g = 1.5 m/s²

Acceleration due to gravity in moon = 1.5 m/s²

8 0
2 years ago
When a court has "___ ___" they can hear a case once a lower court has ruled on it.
notka56 [123]
Your answer is going to be Appellate jurisdiction.
3 0
3 years ago
Which of the following is true about conduction? Question 2 options: It is heat transfer through direct contact It can only occu
kramer

Answer:

through direct contact

Explanation:

took the test!

3 0
3 years ago
Other questions:
  • TRUE OR FALSE: with time and pressure, peat turns into lignite, or brown coal.
    13·2 answers
  • You observe a distant galaxy. You find that a spectral line of hydrogen that is shifted from its normal location in the visible
    9·1 answer
  • A piano string having a mass per unit length equal to 4.80 ✕ 10−3 kg/m is under a tension of 1,300 N. Find the speed with which
    10·1 answer
  • A building made with a steel structure is 565 m high on a winter day when the temperature is 0◦F. How much taller is the buildin
    13·1 answer
  • The 94-lb force P is applied to the 220-lb crate, which is stationary before the force is applied. Determine the magnitude and d
    13·1 answer
  • What are two ways you can increase the magnetic field of an electromagnetic?
    6·1 answer
  • I need help immediately and thank you of if you answer the question
    5·1 answer
  • How many half-lives have passed if a sample contains 25% of its original carbon-14?
    7·1 answer
  • Being willing to sincerely apologize for mistakes errors and blunders goes a long way toward
    9·1 answer
  • Seeds are often found on which part of a gymnosperm?<br><br> branch<br> leaf<br> cone<br> stem
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!