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
vovangra [49]
1 year ago
11

As a train accelerates away from a station, it reaches a speed of 4.9 m/s in 5.4 s. if the train's acceleration remains constant

, what is its speed after an additional 5.0 s has elapsed?
Physics
1 answer:
romanna [79]1 year ago
3 0

The speed of the train after an additional 5 s has elapsed is 9.45 m/s

<h3>What is acceleration? </h3>

This is defined as the rate of change of velocity which time. It is expressed as

a = (v – u) / t

Where

  • a is the acceleration
  • v is the final velocity
  • u is the initial velocity
  • t is the time

<h3>How to determine the acceleration in 5.4 s</h3>
  • Initial velocity (u) = 0 m/s
  • Final velocity (v) = 4.9 m/s
  • Time (t) = 5.4 s
  • Acceleration (a) =?

a = (v – u) / t

a = (4.9 – 0) / 5.4

a = 4.9 / 5.4

a = 0.91 m/s²

<h3>How to determine the final velocity after 5 s</h3>
  • Initial velocity (u) = 4.9 m/s
  • Acceleration (a) = 0.91 m/s²
  • Time (t) = 5 s
  • Final velocity (v) = ?

a = (v – u) / t

0.91 = (v – 4.9) / 5

Cross multiply

v – 4.9 = 0.91 × 5

v – 4.9 = 4.55

Collect like terms

v = 4.55 + 4.9

v = 9.45 m/s

Learn more about acceleration:

brainly.com/question/491732

#SPJ1

You might be interested in
An observer is standing at a point balloon calculus find the rate at which
Maslowich
That makes no sense I can't help sorry
4 0
3 years ago
32. Which sub-atomic particle has a charge of +1?
mestny [16]

Answer:

Protons

Explanation:

Have a charge of +1 and a mass of 1

5 0
3 years ago
(c) If η = 60% and TC = 40°F, what is TH, in °F?
arlik [135]
2b2t hope that helps
5 0
3 years ago
Which of the following would be valid reason to NOT build the power plant?
Inessa [10]

Answer:

all of the above

Explanation:

because power plant are the ones that cause pollution,it can also destroy ecosystems for animals,and it cant be built anywhere.

6 0
3 years ago
Read 2 more answers
A man has a mass of 66 kg on earth. What’s his weight in pounds?
Vlad1618 [11]

Answer:

646.8 N

Explanation:

3 0
3 years ago
Other questions:
  • What is the power of a light bulb that has<br> a resistance of 190 ohms in a 120 v circuit?
    12·2 answers
  • Please answer this question
    9·2 answers
  • Two countries that go through Tropic of Cancer
    5·2 answers
  • During a free fall Swati was accelerating at -9.8m/s2. After 120 seconds how far did she travel?
    5·1 answer
  • A space vehicle deploys its re–entry parachute when it's traveling at a vertical velocity of –150 meters/second (negative becaus
    8·1 answer
  • A rock falls from a vertical cliff that is 4.0 m tall and experiences no significant air resistance as it falls. At what speed w
    11·1 answer
  • According to the kenitic theory, what happens when ice melts
    12·2 answers
  • If a net force on the block is zero then what happens A.No forces act on the block.B There is no friction on the block.C The blo
    6·1 answer
  • 1) [25 pts] A 90-kg merry-go-round of radius 2.0 m is spinning at a constant speed of 20 revolutions per minute. A kid standing
    10·1 answer
  • A car travels at 20km/h for 60 mins how far does it travel
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!