Question

A car moving at 90 km/h passes a 1.21 km -long train traveling in the same...

A car moving at 90 km/h passes a 1.21 km -long train traveling in the same direction on a track that is parallel to the road.

Part A

If the speed of the train is 71 km/h , how long does it take the car to pass the train?

Express your answer using two significant figures.

Part B

How far will the car have traveled in this time?

Express your answer using two significant figures.

Part C

If the car and train are instead traveling in opposite directions, how long does it take the car to pass the train?

Express your answer using three significant figures.

Part D

How far will the car have traveled in this time?

Express your answer using two significant figures.

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A car moving at 90 km/h passes a 1.21 km -long train traveling in the same...
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
  • An automobile traveling 95 km/h overtakes a 1.80 km -long train traveling in the same direction...

    An automobile traveling 95 km/h overtakes a 1.80 km -long train traveling in the same direction on a track parallel to the road. Part A If the train's speed is 75 km/h, how long does it take the car to pass it? Part B How far will the car have traveled in this time? Part C How long does it take the car to pass the train if the car and train are traveling in opposite directions? Part D How...

  • A car traveling at 35.0 km/h speeds up to 45.0 km/h in a time of 5.60...

    A car traveling at 35.0 km/h speeds up to 45.0 km/h in a time of 5.60 s (interval A). The same car later speeds up from 65.0 km/h to 75.0 km/h in a time of 5.60 s (interval B). 1) Calculate the magnitude of the constant acceleration for the first interval. (Express your answer to three significant figures.)2) Calculate the magnitude of the constant acceleration for the second interval. (Express your answer to three significant figures.)3) Determine the distance traveled...

  • 7) A car moving at 70.0 km/h mects a train of length 1.10 km moving at...

    7) A car moving at 70.0 km/h mects a train of length 1.10 km moving at 40.0 km/h along a track parallel to the road. What distance does the car travel in passing the length of the train giv they travel (a) in the same direction, or (b) in opposite directions? en that

  • Please help me with the following questions: 1) Superman must stop a 115-km/h train in 150...

    Please help me with the following questions: 1) Superman must stop a 115-km/h train in 150 m to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 × 105 kg. Part A: Determine the force that must be exerted on the train. Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value...

  • 2. Superman must stop a 120-km/h train in 100 m to keep it from hitting a...

    2. Superman must stop a 120-km/h train in 100 m to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 × 105 kg. a. Determine the force that must be exerted on the train.Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is in the...

  • How much work must be done to stop a 1200-kg car traveling at 90 km/h ?...

    How much work must be done to stop a 1200-kg car traveling at 90 km/h ? Express your answer to two significant figures and include the appropriate units.

  • How much work must be done to stop a 1150-kg car traveling at 90 km/h ?...

    How much work must be done to stop a 1150-kg car traveling at 90 km/h ? Express your answer to two significant figures and include the appropriate units.

  • A bird can fly 27 km/h . Part A How long does it take to fly...

    A bird can fly 27 km/h . Part A How long does it take to fly 2.8 km ? Express your answer using two significant figures.

  • Two railroad cars, each of mass 58000 kg kg and traveling 85 km/h km/h in opposite...

    Two railroad cars, each of mass 58000 kg kg and traveling 85 km/h km/h in opposite directions, collide head-on and come to rest. Two railroad cars, each of mass 58000 kg and traveling 85 km/h in opposite directions, collide head-on and come to rest. Part A How much thermal energy is produced in this collision? Express your answer to two significant figures and include the appropriate units. HÅR O ? E = 2.19.10 Submit Previous Answers Request Answer * Incorrect;...

  • How much work must be done to stop a 1500 kg car traveling at 80 km/h...

    How much work must be done to stop a 1500 kg car traveling at 80 km/h ? Express your answer using two significant figures. h ΚΑΙ ΑΣφ ? W = Submit Request Answer Provide Feedback <Assignment 6 Problem 7.38 Part A If it requires 55 J of work to stretch a particular spring by 1.8 cm from its equilibrium length, how much more work will be required to stretch it an additional 45 cm? Express your answer using two significant...

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