physics

posted by .

Two cars are travelling at adjacent highway lanes in the same direction . Car B is stopped by car A which travels at 15km/hr. Then 2 seconds later car B starts and accelerate at a constant rate of 3 meter per seconds square . Determine when and where car B will overtake car A
Determine the speed of car B at that time

  • physics -

    time for car a is t+2
    time for car b is t

    distance car a
    = (15000 m/3600 s)(t+2)

    distance car b = (1/2)(3)t^2

    so when does car a travel the same distance as car b?

    (150/36)(t+2) = (3/2) t^2

    solve quadratic, use the t that makes sense :)

    speed of b = 3 t

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  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 starting …
  2. 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 starting …
  3. physics

    Two cars are traveling at the same constant speed v. Car A is moving along a straight section of the road, while B is rounding a circular turn. Which statement is true about the acceleration of the cars?
  4. 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 4.8 m/s2 for 4.5 seconds. It then continues at a constant speed for 9.9 seconds, …
  5. 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 Va. …
  6. physics

    Two cars leave the same point at the same time, each travelling at the same constant speed and each having the same mass. The first car drives directly east, while the second car heads directly north. If the centre of mass of the two-car …
  7. physics with 6 questions

    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 3.3 m/s2 for 3.9 seconds. It then continues at a constant speed for 13.7 seconds, …
  8. 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 vA. …
  9. Physics

    Car A travelling at 13 m/s [N] is 190m behind car B which is travelling at 9.0 m/s [N]. At this moment car A starts to accelerate at 6.0 m/s^2 [N] to catch up with car B. After 1.0s, car B also starts to accelerate at 2 m/s^2 [N]. …
  10. Math

    Two cars, car X and car Y , start moving from the same point P on a cross intersection. Car X is travelling east and car Y is travelling north. Some time later car X is 60 km east of point P and travelling in an easterly direction …

More Similar Questions