physics

posted by .

a bus is driving through traffic as it makes a number of express stops. the bus drives at a speed of 10 m/s2 for 90 seconds then drives at a speed of 15m/s for 120 seconds before stopping for 30 seconds, then drives at a speed of 5m/s for 60 seconds before stopping for 15 seconds. Find the average speed of the during the trip.

  • physics -

    10m/s^2 is acceleration an not speed.
    Did you mean 10m/s?

    D = 10*90 + 15*120 + 5*60,
    D = 900 + 1800 + 300 = 3000m = total distance.

    T = 90 + 120 + 30 + 60 + 15 = 315s.

    V = D / T = 3000m / 315s = 9.52m/s.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    a bus takes 12 hours to travel the same distance that an airplane travels in 1.5 hours. the average speed of the airplane ia 120 km per hour faster than five times the average speed of the bus. what is the average speed of the bus?
  2. science

    The bus driver's manager wants to know the average speed at which the driver was actually driving the bus that day while he was on the road. DON'T include the rest stops. A bus driver runs a round trip route between 3 cities. It takes …
  3. science

    The bus driver's manager wants to know the average speed at which the driver was actually driving the bus that day while he was on the road. DON'T include the rest stops. A bus driver runs a round trip route between 3 cities. It takes …
  4. physics

    1.The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2. 2.An airplane taking off from a landing field has a run of 500 m. It starts from rest, moves with constant …
  5. Science

    The rest stops the driver made are included in the calculations because that is hoe the problem is defined. However, suppose the bus driver's manager wants to know the average speed at which the driver was actually driving the bus …
  6. algebra

    When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.
  7. algebra

    When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.
  8. Algebra-HELP!!!!

    When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.
  9. introductory Facts and concepts

    On page 111 of your reading material there is a problem that requires you to calculate the average speed for a daylong bus trip. The rest stops the driver made are included in the calculations because that is how the problem is defined. …
  10. Science

    On page 111 of your reading material there is a problem that requires you to calculate the average speed for a daylong bus trip. The rest stops the driver made are included in the calculations because that is how the problem is defined. …

More Similar Questions