physics

posted by .

A car of mass m traveling at speed v on a horizontal road applies its brakes and comes to rest in time t while traveling a distance of d. The amount of internal energy created is?

  • physics -

    (1/2) m v^2

    The stopping distance and time don't matter. Initial kinetic energy ends up as heat (internal energy).

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A 850.0-kg car travelling on a level road at 27.0 m/s (60.5 mi/hr) can stop, locking its wheels, in a distance of 61.0 m (200.1 ft). (a) Find the size of the horizontal force which the car applies on the road while stopping. (b) Find …
  2. physics

    The speed limit in a school zone is 40.0 km/hr. A driver traveling at this speed sees a child run into the road 14 m ahead of the car. The driver applies the brakes and the car slows at a uniform rate of 8.3 m/s^2. If the driver's …
  3. physics

    The speed limit in a school zone is 38 km/h. A driver traveling at this speed sees a child run onto the road 16 m ahead of his car. He applies the brakes, and the car decelerates at a uniform rate of 8.5 m/s2. If the driver's reaction …
  4. Physics

    A 1100 kg car is moving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to rest in a distance of 140 m. (a) If the road is completely level, what is the constant force …
  5. Physics

    A 1100 kg car is moving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to rest in a distance of 140 m. (a) If the road is completely level, what is the constant force …
  6. physics

    A car is originally traveling at 15.0 meters per second on a straight horizontal road.The driver applies the brakes causing the car to decelerate at 4.00 meters per second ^2 until it comes to a rest. Determine the cars stopping distance
  7. Physics

    A 1000-kg car is driving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to a rest in a distance of 140 m. What is the constant force applied to the car to bring it to …
  8. Physics

    An 800-kg car traveling in a straight line at a speed of 30 m/s applies its brakes. During braking, there is a net force of 2000 N in the horizontal direction on the car. What distance will the car move from the time it applies its …
  9. physics

    n automobile traveling at a speed of 29.3 m/s applies its brakes and comes to a stop in 4.9 s. If the automobile has a mass of 1.2 103 kg, what is the average horizontal force exerted on it during braking?
  10. Physics

    A 1000kg car is driving toward the north along a straight horizontal road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to a rest uniformly in a distance of 150 m. What is the magnitude applied to the car …

More Similar Questions