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
katen-ka-za [31]
3 years ago
5

A train moves from rest to a speed of 25 m/s in 30.0 seconds. What is the acceleration?

Physics
1 answer:
fredd [130]3 years ago
4 0

Answer:

a = 0.83\ m/s^2

Explanation:

<u>Uniform Acceleration </u>

When an object changes its velocity at the same rate, the acceleration is constant.

The relation between the initial and final speeds is:

v_f=v_o+a.t

Where:

vf  = Final speed

vo = Initial speed

a   = Constant acceleration

t   = Elapsed time

It's known a train moves from rest (vo=0) to a speed of vf=25 m/s in t=30 seconds. It's required to calculate the acceleration.

Solving for a:

\displaystyle a=\frac{v_f-v_o}{t}

Substituting:

\displaystyle a=\frac{25-0}{30}

\boxed{a = 0.83\ m/s^2}

You might be interested in
38. You are fishing and catch a fish with a mass of
adoni [48]

Answer:

1.7333333m/s²

Explanation:

Tension of the line = the weight + force from pulling up the fish

30N = mg + ma

30 = (6)(9.8) + (6)a

10.4 = 6a

∴ a = 1.7333333m/s²

6 0
3 years ago
How are longitudinal and transverse waves different?
Natalija [7]

Answer:

A longitudinal wave is a wave where the movement of the medium is in the same direction as the wave. On the other hand, a transverse wave is a wave where the movement of the medium is at a right angle to the wave direction.

Explanation:i got this right on a quiz so i know its right

3 0
3 years ago
The force of gravity on Jupiter is much stronger than the force of gravity on earth what is the answer?
Pachacha [2.7K]

This would be true. On Jupiter you would weigh 234 pounds if you were 100 pounds on Earth.

7 0
3 years ago
Read 2 more answers
Help, please!!!!!<br> I just need help putting the vocab word in the box where it belongs.
Ber [7]

here's the first part but for the 2nd one all I know is that the word "compression" goes on the spirals that are closer together.

hope this helps!

8 0
2 years ago
2. Human Impact on the Environment
Kitty [74]
Burning fossil fuels emits a number of air pollutants that are harmful to both the environment and public health. Sulfur dioxide (SO2) emissions, primarily the result of burning coal, contribute to acid rain and the formation of harmful particulate matter.
8 0
3 years ago
Other questions:
  • Could someone help me with this please?
    12·2 answers
  • What waves travel through a medium? Transverse, longitudinal, surface, electromagnetic, and mechanical are the choices
    15·1 answer
  • A 1.00-kmkm length of power line carries a total charge of 230 mCmC distributed uniformly over its length. Find the magnitude of
    13·1 answer
  • Give three practical uses of electromagnets
    9·1 answer
  • What is the meaning of overall charge.
    12·1 answer
  • When the starter motor on a car is engaged, there is a 290 A current in the wires between the battery and the motor. Suppose the
    10·1 answer
  • The 60.0 kg skier shown below is skiing down a 35.0 degree incline where the magnitude of the friction force is 38.5N
    5·1 answer
  • Describe the effect of the mass on the net force.
    13·2 answers
  • A car’s momentum is p when it is traveling with a velocity of v. If the velocity of that car doubles, what is the new momentum o
    8·2 answers
  • If an object is in freefall it will experience air blank which generates a drag force
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!