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
g100num [7]
3 years ago
15

If a bust starts to move and its velocity becomes 90 km after 8 seconds . calculate its acceleration answer it quick please

Physics
1 answer:
kherson [118]3 years ago
3 0

Answer:

a = 3.125 [m/s^2]

Explanation:

In order to solve this problem, we must use the following equation of kinematics. But first, we have to convert the speed of 90 [km/h] to meters per second.

90\frac{km}{h}*\frac{1000m}{1km}*\frac{1h}{3600s}   \\= 25 \frac{m}{s}

v_{f} =v_{i} + (a*t)

where:

Vf = final velocity = 25 [m/s]

Vi = initial velocity = 0

a = acceleration [m/s^2]

t  = time = 8 [s]

The initial speed is zero as the bus starts to koverse from rest. The positive sign of the equation means that the bus increases its speed.

25 = 0 + a*8

a = 3.125 [m/s^2]

You might be interested in
How can u create a fair test?<br><br> Short answer only:
Crazy boy [7]

Answer:

making sure that you change one factor at a time while keeping all other conditions the same

Explanation:

5 0
2 years ago
Read 2 more answers
Why echos are undesirable in a big hall​
KatRina [158]

Answer:

Helloooo

Sound created in a big hall will persist by repeated reflection from the walls until it is reduced to a value where it is no longer audible. The repeated reflection that results in this persistence of sound is called reverberation. In an auditorium or big hall excessive reverberation is highly undesirable

Explanation:

thanks....

8 0
3 years ago
Read 2 more answers
(a) When a battery is connected to the plates of a 8.00-µF capacitor, it stores a charge of 48.0 µC. What is the voltage of the
frosja888 [35]

Answer:

a.6 V

b.24 V

Explanation:

We are given that

a.C=8\mu F=8\times 10^{-6} F

1\mu =10^{-6}

Q=48\mu C=48\times 10^{-6} C

We know that

V=\frac{Q}{C}

Using the formula

V=\frac{48\times 10^{-6}}{8\times 10^{-6}}=6 V

b.Q=192\mu C=192\times 10^{-6} C

V=\frac{192\times 10^{-6}}{8\times 10^{-6}}=24 V

8 0
3 years ago
1.
irga5000 [103]

Answer:

Explanation:

solution is found below

6 0
3 years ago
A truck accelerating at 0.0083 meters/second2 covers a distance of 5.8 × 104 meters. If the truck's mass is 7,000 kilograms, wha
zhannawk [14.2K]
Work done = force * distance moved (in direction of the force)

force= mass* acceleration 

force=58.1N

58.1*(5.8*10^4)
=3,369,800 J
7 0
3 years ago
Read 2 more answers
Other questions:
  • Two dimensional motion is motion in :
    5·1 answer
  • A large fish hangs from a spring balance supported from the roof of an elevator. If the elevator has an upward acceleration of 2
    6·1 answer
  • The total power input to the solar cell is 2.4W when the efficiency is 0.20.
    15·1 answer
  • A baseball with mass 0.145 kg is moving in the+y direction with a speed of 2.10m/s, and a tennis ball with mass 0.0570 kg is mov
    8·1 answer
  • A 50kg box is pulled on by a rope. The rope applies a horizontal force of 180 N to the box. What is the normal force exerted on
    8·1 answer
  • What is the electric force acting between two charges of −0.0085 C and −0.0025 C that are 0.0020 m apart?
    8·2 answers
  • State archimedes principle​
    8·1 answer
  • What is the mass of a dinosaur that has the weight of 33000 N? Show your work.
    13·1 answer
  • True or false the melting of ice cubes is a exothermic reaction
    14·1 answer
  • If 100g of an isotope undergoes two half-lives, how many grams will be remaining?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!