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
Travka [436]
2 years ago
14

If a train is traveling eastward with a constant velocity of 15 m/s, what is the net external force action on it? There is not e

nough information, so it cannot be solved. There is no net force acting on the train. the force from the engines
Physics
2 answers:
sammy [17]2 years ago
6 0

Answer:

There is no net force acting on the train.

Explanation:

The net force equals mass times acceleration:

∑F = ma

The train moves at constant velocity, so its acceleration is 0.  Therefore, the net force is 0.

ExtremeBDS [4]2 years ago
3 0

If a train is travelling eastward with a constant velocity of 15 m/s, there is no net force acting on the train.

Answer: Option B

<u>Explanation: </u>

According to Newton 2nd law, the external force is proportionate to the rates of change of momentum which states that force will be indirectly proportional to the rates of variation in velocity. So, as the velocity is constant for the train, the rate of variation in velocity or the acceleration will be zero. Thus the total external forces acting on the train will be zero. But the train will be moving continuously due to the energy obtained from the engine.

You might be interested in
100POINTTTTTSSS PLEASE HELP
attashe74 [19]
Components connected in series are connected along a single path, so the same current flows through all of the components. If the light bulbs are connected in parallel, the currents through the light bulbs combine to form the current in the battery, while the voltage drop is across each bulb and they all glow.
8 0
3 years ago
Two 5 kg potted cacti, one in a black pot and one in a blue pot, slide down a sagging shelf in the same direction with
svp [43]

Answer:

Answers A and D are the correct solution.

Explanation:

Both pots have the same mass and the same velocity vector.

the only difference between A and D is the selection of the reference frame positive direction.

5 0
2 years ago
What is this?<br> Picture
miss Akunina [59]

Answer:

may be upside down alphabet :"T"

Explanation:

8 0
3 years ago
Read 2 more answers
How does mining affect the environment
weqwewe [10]
The environmental impact of mining affects, nesting habitats for wildlife. Wildlife either moves on, or dies.
hope this helps:)


5 0
3 years ago
In a recent experiment, anti-bacterial hand sanitizer was compared to hand soap. Students washed their hands using the sanitizer
Elden [556K]
<span>B) Both soap brands out perform hand sanitizer in killing bacteria.</span>

Looking at the data, the conclusion is pretty obvious, the two different types of soap resulted in about half the bacteria cultures as either the hand sanitizer, or just using warm water. In fact, the hand sanitizer looks like it's even worse than simply using warm water. So looking at the four available options, the best choice is "B) Both soap brands out perform hand sanitizer in killing bacteria."
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which equipment would help you separate a liquid mixture by distillation?
    7·1 answer
  • If you have 500 g of water at 25oc and wish to heat it to 74o c, what is the specific heat of water
    14·1 answer
  • B What is SI and CGs unit of force​
    12·1 answer
  • Why is respiration an exothermic reaction?
    5·2 answers
  • Which type of foot PPE must you wear if electrical shock is ever a possibility with your job?
    7·1 answer
  • HELPPPPP The amount of energy transferred by a wave is indicated by the wave’s _____.
    15·1 answer
  • How are desert plants adapted to their climate?
    7·1 answer
  • A piano tuner is tuning a piano when he discovers that the G above middle C is vibrating with a higher frequency than his G tuni
    5·1 answer
  • A force of 10N is making an angle of 30<br>with the horizontal. Its vertical component<br>will be;​
    12·1 answer
  • A 60.0-kg skater begins a spin with an angular speed of 6.0 rad/s. By changing the position of her arms, the skater decreases he
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!