Question

A train slowing to a stop has an average acceleration of -3.00 m/ s 2 ....

A train slowing to a stop has an average acceleration of -3.00 m/ s 2 . If its initial velocity is 30.0 m/s, how far does it travel in 4.00 seconds?

A.) 144m
B.) 140m
C.) 96m
D.) 96.0m

0 0
Add a comment Improve this question Transcribed image text
Answer #1

шля using the joumula s = ut t & at² S = 30x4 + 1 X (-307 s = 120-24 is = 96m so option (C) should be right.

Add a comment
Know the answer?
Add Answer to:
A train slowing to a stop has an average acceleration of -3.00 m/ s 2 ....
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A train moving east with an initial velocity of 0.500 m/s speeds up at 2.00 m/s...

    A train moving east with an initial velocity of 0.500 m/s speeds up at 2.00 m/s for 20.0 seconds, then moves at constant velocity for 100. seconds and finally slows down to a stop during the final 30.0 seconds. (10 points) a. Sketch a position versus time graph for the train #1 2 Sketch a velocity versus time graph for the train use c. What was the acceleration as it slowed? d. What was the net displacement during the 150...

  • A train is moving along a straight track with an initial velocity of 8 m/s when...

    A train is moving along a straight track with an initial velocity of 8 m/s when it is subjected to a deceleration of a-1.6/v m/s2, where v is in m/s. 2. How far does the train travel before it stops? How much time does it take to stop? a. b.

  • Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity...

    Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity (in m/s) of a freight train that accelerates at a rate of 0.0700 m/s for 8.00 min, starting with an initial velocity of 4.00 m/s? m/s (b) If the train can slow down at a rate of 0.450 m/s2, how long (in s) will it take to come to a stop from this velocity? (c) How far (in m) will it travel in each...

  • A train is moving with a constant velocity of 83 m/s in the easterly direction. A...

    A train is moving with a constant velocity of 83 m/s in the easterly direction. A girl on the train looks out the window and sees a boy outside with a toy rocket. The boy fires the rocket with an initial velocity of 9.8 m/s straight up into the air. How far does the train travel in the easterly direction while the toy rocket is in the air, i.e. how far does the train travel during the time it takes...

  • A train moving in a straight line with an initial velocity of 0.50 m/s accelerates at...

    A train moving in a straight line with an initial velocity of 0.50 m/s accelerates at 2.0 m/s^2 for 2.0 seconds, coasts with zero acceleration for 3.0 seconds, and then accelerates at -1.5 m/s^2 for 1.0 seconds. (a) What is the final velocity of the train? (b) What is the average acceleration of the train?   Thank you!!!!1

  • 1. A bullet leaves a 24 inch rifle barrel at 900 ft/s. What was its acceleration...

    1. A bullet leaves a 24 inch rifle barrel at 900 ft/s. What was its acceleration and time in the barrel? 2. A train has an initial velocity of 54 mph. 4 minutes later it slows to a stop at an intersection. What is the acceleration? How far did it travel before coming to a stop?

  • Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity...

    Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity (in m/s) of a freight train that accelerates at a rate of 0.0700 m/s2 for 8.00 min, starting with an initial velocity of 5.00 m/s? m/s (b) If the train can slow down at a rate of 0.650 m/s², how long (In s) will it take to come to a stop from this velocity? (c) How far (in m) will it travel in each...

  • A car travels 40 miles in 30 minutes. a. What is the average velocity in kilometers/hour?...

    A car travels 40 miles in 30 minutes. a. What is the average velocity in kilometers/hour? b. If the car weighs 1.5 tons, what is its kinetic energy in joules (Note: you will need to convert your velocity to m/s)? c. When the driver applies the brake, it takes 15 seconds to stop. How far does the car travel (in meters) while stopping? d. What is the average acceleration of the car (in m/s2) during braking?

  • 3. During a very quick stop, a car decelerates at 6.2 m/s2. Assume the forward motion...

    3. During a very quick stop, a car decelerates at 6.2 m/s2. Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires (and that they do not slip on the pavement). a. What is the angular acceleration of its tires in rad/s2, assuming they have a radius of 0.28 m and do not slip on the pavement? b. How many revolutions do the tires make before coming to rest, given their initial...

  • Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity...

    Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity (in m/s) of a freight train that accelerates at a rate of 0.0500 m/s2 for 8.00 min, starting with an initial velocity of 5.00 m/s? 28.0 X m/s (b) If the train can slow down at a rate of 0.450 m/s2, how long in s) will it take to come to a stop from this velocity? 62.2 XS (c) How far (in m) will...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT