Science

Explain whether there can be any forces acting on a car moving in a straight line with constant speed.

  1. 👍
  2. 👎
  3. 👁
  1. the acceleration is zero, so the net horizontal force is zero. That means that friction, air resistance are exactly balanced by the thrust of the wheels from the torque of the engine.
    In the vertical direction, the force up from the road exactly balances the force of gravity down plus any lift from the wind if the road is level.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    a 5.o kg book is sitting on a table. which describes the forces acting on the book? a)there are no forces acting on the book b)the net force on the book is zero Since the weight of the book is cancelled out by the support of the

  2. Physics

    1 If a heavy semi truck with a mass of 20,000 kg collides with smaller two door car that has a mass of 5000 kg. Which of the following statements is true? a. The truck experiences more force than the car b. The car experiences

  3. Physics

    During a road test,a driver brakes a 1420kg car moving at 64.8km/h [W]. The car slows down and comes to a stop after moving 729m [W]. What is the net force acting on the car?

  4. physic

    use draw a force diagram of a crash - test dummy in a car at the moment of collision.for this proplem, assume that the forces acting on the car are 19 600n downward, 17 800 n forward, and 25 000 n backward. the forces acting on

  1. physics

    Two cars cover the same distance in a straight line. Car A covers the distance at a constant velocity. Car B starts from rest and maintains a constant acceleration. Both cars cover a distance of 487 m in 216 s. Assume that they

  2. physics

    A car of mass 1200 kg starts from rest, accelerates uniformly to a speed of 4.0 m/s in 2.0 s and continues moving at this constant speed in a horizontal straight line for an additional 10 s. The brakes are then applied and the car

  3. physics

    A motor car of mass 1200kg is moving along a straight line with a uniform velocity of 90km/h.itsmvelocity is slowed down to 18km/h in 4 s by an unbalanced external force.calculate th acceleration and change in momentum of the car

  4. Math

    You're on a skateboard, moving very fast but at a constant speed. Are you accelerating? Explain. Lara Claims that if an object is accelerating, it must be moving. She also claims that if an object is not accelerating, it must be

  1. physics

    Cars A and B are racing each other along a straight path in following manner: Car A has head start and is a distance dA beyond starting line at t=0. The starting line is at x=o. Car A travels at constant speed vA. Car B starts at

  2. physics

    A short train (an engine plus four cars) is accelerating at 1.10 . The mass of each car is 38000 , and each car has negligible frictional forces acting on it. In solving this problem, note the importance of selecting the correct

  3. Physics

    A space probe is carried by a rocket into outer space where it continues to move on its own in a straight line. What keeps the probe moving? Is the answer: the gravitation forces from diļ¬€erent stars and planets

  4. Physics

    You are conducting an experiment inside a train car that may move horizontally along rail tracks. A load is hung from the ceiling on a string. The load is not swinging, and the string is observed to make a constant angle of with

You can view more similar questions or ask a new question.