1. Questions

physics

2. A car accelerates uniformly from +10.0 m/s to +40.0 m/s over a distance of 125 m. How long did it take to go that distance? Show all your work, including the equation used, given and unknown quantities, and any algebra required. Make sure your answer has the correct number of significant figures.

  1. 👍
  2. 👎
  3. 👁
Anonymous

  1. G:vi=10.0, vf=40.0, deltax=125
    U:time
    E:deltax=1/2(vi+vf)time --> deltax/.5(vi+vf)=time
    S: 125/.5(10.0+40.0)
    S: 5.0 sec

    that was the GUESS method. the G=givins, U=unkown, E=equation, S=solve, and S=solution.

    deltax=the distance
    vi=initial velocity
    vf=final velocity

    I hope this helped :)

    1. 👍
    2. 👎
    a friend

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.6 m/s2 for 4.5 seconds. It then continues at a constant speed for 7.3

  2. physics

    The Graph above shows the speed of a car traveling in a straight line as a function of time. The car accelerates uniformly and reaches a speed Vb of 4.00 m/s in 8.00 seconds. Calculate the distance traveled by the car from a time

  3. Physics

    A car accelerates uniformly from rest to 21.0 m/s in 6.1 s along a level stretch of road. Ignoring friction, determine the average power required to accelerate the car if the weight of the car is the following. A) 8.0e3N B) 1.2e4N

  4. Science

    Physics question -A driver of a car travelling at 72km/h, applying brakes and accelerates uniformly in opposite direction at the rate of 5m/s2. How long will the car take to come into rest ? How far will the car covered a distance

  1. physics

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 4.6 m/s2 for 4.4 seconds. It then continues at a constant speed for 8.5

  2. physics

    A car starts from rest and accelerates uniformly over a time of 6.5 seconds for a distance of 150 m. Determine the acceleration of the car.

  3. Physics

    A car starts from rest and accelerates unifomly at 3m/s^2. A second car starts from rest 6 seconds later at the same point and accelerates uniformly at 5m/s^2. How long does it take the second car to over take the first car?

  4. physics

    A car enters the freeway with a speed of 6.5 m/s and accelerates uniformly for 3.5 km in 3.9 min. How fast is the car moving after this time? Answer in units of m/s.

  1. physics

    Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.5 m/s2 for 4.9 seconds. It then continues at a constant speed for 6.7

  2. Physics

    1. A car starts from rest and accelerates uniformly at 3.0 m/s2. A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s2. How long does it take the second car to overtake the first car? 2.

  3. Physics

    A car accelerates uniformly from rest to a speed of 72.7 km/h (20.2m/s) in 11 second. the distance the car travels during this time.

  4. physics

    A car accelerates uniformly from rest to a speed of 64.5 km/h (17.9 m/s) in 10 s. Find the distance the car travels during this time.

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