science

posted by .

A car travels 240km in 2hr. And the sprinter travels 100m in 9.5 seconds. which one is traveling faster and by how much ?

  • science -

    recall that speed is distance travelled over time. thus we calculate the speed of each. let's also make sure that the units of speed for both are the same.

    Car: (convert first the units)
    240 km * (1000 m /1 km) = 240000 m
    2 hr * (3600 s / 1 hr) = 7200 s
    v = d/t
    v = 240000/7200
    v = 33.33 m/s

    Sprinter:
    v = d/t
    v = 100/9.5
    v = 10.53 m/s

    thus the car travels faster than sprinter by 33.33 - 10.53 = 22.8 m/s

    hope this helps~ :)

  • math -

    lalala

  • science -

    nh

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. AP Physics

    1. A car is traveling down the road at a constant speed of 11 km/h. At time zero it is forced to stop. The driver slams on the brakes and the car travels 18 m as it uniformly accelerates, coming to a stop. The car remains at rest for …
  2. math

    two cars leave the same point at noon. one car travels north and the other car travels east. suppose the northbound car is traveling 40mph, and after two hours, the two car are 100 miles apart.how fast is the other car going?
  3. math

    two cars leave the same point at noon. one car travels north and the other car travels east. suppose the northbound car is traveling 40mph, and after two hours, the two car are 100 miles apart.how fast is the other car going?
  4. math

    Currently, the Toyota Corolla is the best selling car in the world. Suppose that during a test drive of two Corollas, one car travels 224 miles in the same time that the second car travels 175 miles. If the speed of the first car is …
  5. math

    Currently, the Toyota Corolla is the best selling car in the world. Suppose that during a test drive of two Corollas, one car travels 224 miles in the same time that the second car travels 175 miles. If the speed of the first car is …
  6. Intermediate Algebra

    A car travels 30 miles in the same time that a car traveling 5 miles per hours faster travels 45 miles. What is the rate of each car?
  7. Intermediate Algebra

    A car travels 30 miles in the same time that a car traveling 5 miles per hours faster travels 45 miles. What is the rate of each car?
  8. math

    Suppose that a certain municipality uses the equation y=3(x-50)+30 to determine the fine assessed a car which exceeds the 50 mph speed limit. Let x=speed of the car (in mph) and y=corresponding fine in dollars. a)What is the fine for …
  9. Science

    A car weighing 24,500 Newtons is traveling east and travels a distance of 100 meters in 20 seconds. What is the car's mass?
  10. math

    A model car travels horizontally after being released. The car travels a distaance d metres in a time of t seconds. d is directly proportional to t. The car travels 20 metres in a time of 2 seconds. A.Calculate the distance the car …

More Similar Questions