Question

PB#1 : A train starts from rest (at position zero) and moves with constant acceleration. On first observation, the velocity is 20 m/s, and 80 s later the velocity is 60 m/s. At 80 s, calculate the position at t = 20m/s, average velocity, and constant acceleration over the interval.
0 0
Add a comment Improve this question Transcribed image text
Answer #1

1 at ob る 2 Hoo m プ speed after- gos 2yDO 8oSol 801 2. sta

Add a comment
Know the answer?
Add Answer to:
PB#1 : A train starts from rest (at position zero) and moves with constant acceleration. On...
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 starts from rest and starts with constant acceleration a = 3.6 m/s2 for 28...

    A train starts from rest and starts with constant acceleration a = 3.6 m/s2 for 28 s. The train then coasts at constant velocity for 118 s. The train then comes to rest in 14 s. Please find the total distance covered by the train during the 160 s described. Kinematic equations: V = vo + at, x = x + vot + at", v = vi + 2aAx, x = x, + (v + v.)t.

  • A train has a length of 104 m and starts from rest with a constant acceleration...

    A train has a length of 104 m and starts from rest with a constant acceleration at time t = 0 s. At this instant, a car just reaches the end of the train. The car is moving with a constant velocity. At a time t = 8.14 s, the car just reaches the front of the train. Ultimately, however, the train pulls ahead of the car, and at time t = 39.9 s, the car is again at the...

  • A train has a length of 107 m and starts from rest with a constant acceleration...

    A train has a length of 107 m and starts from rest with a constant acceleration at time t = 0 s. At this instant, a car just reaches the end of the train. The car is moving with a constant velocity. At a time t = 11.3 s, the car just reaches the front of the train. Ultimately, however, the train pulls ahead of the car, and at time t = 37.3 s, the car is again at the...

  • Q.4 A train starts in a train station at time t = 0 s at position...

    Q.4 A train starts in a train station at time t = 0 s at position r = 0 m. For 1 minute, the train has a constant acceleration a = 1 ms? then it has zero acceleration for 5 minutes, then it has a constant acceleration a = -0.25 m s-2 for 4 minutes until it stops with zero velocity at the next train station. The train track is a straight line. Draw a graph of the velocity of...

  • Problem 4. Collar A starts from rest att 0 and moves upward with a constant acceleration...

    Problem 4. Collar A starts from rest att 0 and moves upward with a constant acceleration of 3.6 in./s2. Knowing that collar B moves downward with a constant velocity of 18 in./s, determine (a) the time at which the velocity of block C is zero, (b) the corresponding position of block C Problem 5. The three-dimensional motion of a particle is defined by the position vector r (Rtcos cwt) i ctj +(Rtsin wt) k. (The space curve described by the...

  • Problem #2 Collar A starts from rest and moves downward with a constant acceleration of 7...

    Problem #2 Collar A starts from rest and moves downward with a constant acceleration of 7 ins. Collar B moves upward with a constant acceleration and has an initial velocity of 8 ins. Knowing that collar B moves through 20 inches in the first 2 seconds, determine the following: (a) Accelerations of B and C (b) The time at which velocity of C is zero (c) The distance that C moves in the time determined in part b.

  • Question 17 A bus starts from rest and moves with a constant acceleration of 2 m/s?....

    Question 17 A bus starts from rest and moves with a constant acceleration of 2 m/s?. Determine the time required for it to attain a final speed of 120 km/h. t60 seconds t-1.67 minutes t- 16.7 seconds t 1 hour Question 17 A bus starts from rest and moves with a constant acceleration of 2 m/s?. Determine the time required for it to attain a final speed of 120 km/h. t60 seconds t-1.67 minutes t- 16.7 seconds t 1 hour

  • 008 10.0 points An elevator starts from rest with a constant upward acceleration and moves 1...

    008 10.0 points An elevator starts from rest with a constant upward acceleration and moves 1 m in the first 1.8 s. A passenger in the elevator is holding a 4.6 kg bundle at the end of a vertical cord. What is the tension in the cord as the ele- vator accelerates? The acceleration of gravity is 9.8 m/s. Answer in units of N.

  • A car starts from rest and moves along a straight line with an acceleration of a...

    A car starts from rest and moves along a straight line with an acceleration of a =10x(-1/5) m/s where x is in meters. Determine the cars position and velocity when = 4.481 s. X(4.481) V(4.481) =

  • A car starts from rest and moves around a circular track of radius 32.0 m. Its...

    A car starts from rest and moves around a circular track of radius 32.0 m. Its speed increases at the constant rate of 0.550 m/s2. (a) What is the magnitude of its net linear acceleration 19.0 s later? (b) What angle does this net acceleration vector make with the car's velocity at this time? Question 6 A car starts from rest and moves around a circular track of radius 32.0 m. Its speed increases at the constant rate of 0.550...

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