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
astra-53 [7]
2 years ago
6

What distance is required for a train to stop if its initial velocity is 23 m/s and its

Physics
1 answer:
Varvara68 [4.7K]2 years ago
7 0

-- The train starts at 23 m/s and slows down by 0.25 m/s every second.

So it'll take (23/0.25) = 92 seconds to stop.

-- Its average speed during that time will be (1/2)(23+0) = 11.5 m/s

-- Moving at an average speed of 11.5 m/s for 92 sec, the train will cover

(11.5 m/s) x (92 sec)  =  <em>1,058 meters</em> .

You might be interested in
What does the person in front of the ambulance experience?
kow [346]

A higher frequency. I just got this answer on usa test prep.

6 0
3 years ago
How much time would it take for the sound of thunder to travel 2000 meters if sound travels of 330 meters per sec
Lubov Fominskaja [6]
2000÷330=6.06 repatant so the answer would be about 6.06 seconds
4 0
3 years ago
Read 2 more answers
According to the Guinness Book of World Records, the longest home run ever measured was hit by Roy "Dizzy" Carlyle in a minor-le
Alina [70]
Range of a projectile motion is given by
R = v cos θ / g (v sin θ + sqrt(v^2 sin^2 θ + 2gy_0)); where R = 188m, θ = 41°, g = 9.8m/s^2, y_0 = 0.9

188 = v cos 41° / 9.8 (v sin 41° + sqrt(v^2 sin^2 41° + 2 x 9.8 x 0.9)) = 0.07701(0.6561v + sqrt(0.4304 v^2 + 17.64)) = 0.05053v + 0.07701sqrt(0.4304v^2 + 17.64)
0.07701sqrt(0.4304v^2 + 17.64) = 188 - 0.05053v
0.005931(0.4304v^2 + 17.64) = 35344 - 19v + 0.002553v^2
0.002553v^2 + 0.1046 = 35344 - 19v + 0.002553v^2
19v = 35344 - 0.1046 = 35343.8954
v = 35343.8954/19 = 1860 m/s
5 0
3 years ago
Water changes from a liquid to a gas in the process of evaporation. Please select the best answer from the choices provided T F
const2013 [10]
The correct answer is T.
6 0
3 years ago
Read 2 more answers
Why do you think energy usage is different at different times of the day
g100num [7]
People are asleep at 3 am so energy would be less then.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What impact can a very large volcanic eruption have on earths climate
    8·1 answer
  • Most of uranus's atmosphere is composed of
    11·2 answers
  • The force on a current-carrying wire is a maximum when the current is moving parallel to a magnetic field. true or false
    11·1 answer
  • A parachutist falls 50.0 m without friction. When the parachute opens, he slows down at a rate of 61 m/s^2. If he reaches the gr
    13·1 answer
  • You and your housemate have an argument over the cost of the electric bill. You want to turn off the outside porch light before
    6·1 answer
  • If any problem involving circular motion, which way does the acceleration vector point ?
    10·1 answer
  • A long solenoid has a diameter of 11.1 cm. When a current i exists in its windings, a uniform magnetic field of magnitude B = 42
    13·1 answer
  • A regulation basketball has a 15 cm diameter and may be appropriated as a thin spherical shell.
    6·1 answer
  • Cold air holds less water than warm air.<br> True<br> False
    7·1 answer
  • A roller coaster is stationary at the top of a ramp.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!