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
Anton [14]
3 years ago
5

A train locomotive is pulling two cars of the same mass behind it. Determine the ratio of the tension in the coupling (think of

it as a cord) between the locomotive and the first car (FT1) to that between the first car and the second car (FT2), for any nonzero acceleration of the train

Physics
1 answer:
Anna007 [38]3 years ago
7 0

Answer:

The ratio is  \frac{F_{T1}}{F_{T2}}  =  2

Explanation:

The diagram for this question is shown on the first uploaded image

Here we are assume the acceleration of the train is a

which makes the acceleration of each car a

From the question we are told that

      Considering the second car

 The force causing it s movement  is mathematically represented as

       F_{T2} =  ma

 Considering the first car

 The force causing it s movement  is mathematically represented as

      F  = F_{T1} -F_{T2} = ma

=>   F_{T1} -ma  = ma

=>   F_{T1} =  2 ma

=> \frac{F_{T1}}{ma}  =  2

=> \frac{F_{T1}}{F_{T2}}  =  2

You might be interested in
A cable is 100-m long and has a cross-sectional area of 1.0 mm2. A 1000-N force is applied to stretch the cable. Young's modulus
Blizzard [7]

Answer:

1 m

Explanation:

L = 100 m

A = 1 mm^2 = 1 x 10^-6 m^2

Y = 1 x 10^11 N/m^2

F = 1000 N

Let the cable stretch be ΔL.

By the formula of Young's modulus

Y=\frac{F\times L}{A\times\Delta L}

\Delta L=\frac{F\times L}{A\times\Y}

\Delta L=\frac{1000\times 100}{10^{-6}\times10^{11}}

ΔL = 1 m

Thus, the cable stretches by 1 m.

4 0
2 years ago
Is a burning wax candle nuclear energy?
sasho [114]

no because nuclear energy come from kinetic not potential energy. burning a wax candle is an example of heat/thermal energy .

6 0
3 years ago
Oil and gas were formed millions of years ago from what
loris [4]
Over millions of years, layer after layer of sediment and other plants and bacteria were formed. ... Even higher heat or biomass made predominantly of plant material produced natural gas.
3 0
3 years ago
Does air resistence decrease with speed
dybincka [34]

Answer:

yes

Explanation:

because when you slow down, the resistance slows with the speed.

3 0
3 years ago
Read 2 more answers
_____ = force × distance<br> A. Work<br> B. Velocity<br> C. Pressure<br> D. Momentum
gavmur [86]

Work is the correct answer

8 0
3 years ago
Other questions:
  • When a gun is fired how come yhe recoil is not strong enough to knock the shooter over?
    9·1 answer
  • Focus groups are one of the most widely used ________ methods to gain greater understanding of a current problem or to develop p
    9·1 answer
  • Explain how you calculate the speed of a wave
    11·1 answer
  • Use the slit example to explain why you can hear a noise in another room through an open door.
    6·1 answer
  • As a sample of water is heated, the energy is used to overcome the attractions between the molecules so that they are no longer
    6·2 answers
  • How do you write an article? ​
    15·2 answers
  • Explain one inference scientists made about the interior of the Earth based on seismic waves. Use the words S &amp; P waves in y
    7·1 answer
  • How much work is done when a 30 kg mass is to be lifted through a height 6m?(1kg=9.8N​
    12·1 answer
  • A motorist travels 130 km in 2 hours.
    13·1 answer
  • A student is given a box containing ten similar plastic drinking straws, a 30 cm ruler and two set-squares. (a) Explain how the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!