physics

How long would a car take to go from 39.3 m/s to 12.4 m/s with an acceleration of 2.8 m/s2?

  1. 👍
  2. 👎
  3. 👁
  1. V = Vo + a*t.
    12.4 = 39.3 - 2.8t, t = ?.

    Since the velocity is decreasing, the acceleration is negative.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A 12 V car battery is found to be capable of storing 2.00 kWh of electrical energy. For a certain electric car, it is necessary to develop 1.00 x 104 W of power to drive at 5.56 m/s. (a) Suppose that the car has 10 such batteries

  2. Math

    One car is 3.9 meters long the other is 6%shorter How long is second car? What is the formula I use for questions involving %

  3. physics

    Just as a car starts to accelerate from rest with an acceleration of 1.4m/s2,a bus moving with a constant speed of 12m/s passes it in a parallel line. 1.How long the car overtakes the bus. 2.How fast will the car then be going.

  4. Physics

    The front 1.20 m of a 1550 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision. (a) If a car traveling 26.0 m/s stops uniformly in 1.20 m, how long does the collision last? cannot_evaluate s

  1. Geometry

    A model is made of a car. The car is 9 feet long and the model is 6 inches long. What is the ratio of the length of the car to the length of the model?

  2. physics

    A certain car can accelerate from rest to the speed v in time T seconds. (a) If the power output of the car remains constant, how long does it take for the car to accelerate from v to 3v, in terms of T? (b) How fast is the car

  3. physics

    An automobile traveling 95 overtakes a 1.10--long train traveling in the same direction on a track parallel to the road. Q1: If the train's speed is 75 , how long does it take the car to pass it Q2:How far will the car have

  4. physics

    a)Two cars are traveling along a straight line in the same direction, the lead car at 24.5m/s and the other car at 29.6m/s. At the moment the cars are 41.6m apart, the lead driver applies the brakes, causing her car to have an

  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

    Cars A and B are racing each other along the same straight road in the following manner: Car A has a head start and is a distance Da beyond the starting line at t=0. The starting line is at x=0. Car A travels at a constant speed

  3. Science

    A car starts from an initial velocity of 10m/s and accelerates at 2.5m/s².how long will it take the car to reach a speed of 40m/s.. How far doea the car travel during this time?

  4. Physics... HELP

    A toy car runs off the edge of a table that is 1.225 meters high. If the car lands 0.400 meters from of the table, a. How long does it take for the car to fall? b. What is the horizontal velocity of the car?

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