Physics

posted by .

A new roller coaster is a conservative system. If the coaster leaves the starting point with a speed of 5 m/s and a height of 25 m, what is its velocity when it reaches a height of 2.5 m?

A. 9.81 m/s^2 B. 21.6 m/s C. 15.4 m/s D. 12.6 m/s

Pls show work thank u!

  • Physics -

    V^2 = Vo^2 + 2g*d.
    V^2 = 25 + 19.6*(25-2.5) = 466
    V = 21.6 m/s.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    I have a diagram of a roller coaster. It starts at a height of 100m where the v=0, it then drops completely to the ground and then goes into a loop that is 75m high; the point where the loop starts is point A. From the loop, the track …
  2. PHYSICS HELP!

    A frictionless roller coaster is given an initial velocity of v0 at height h = 24 m . The radius of curvature of the track at point A is R = 31 m. The acceleration of gravity is 9.8 m/s2 a)Find the maximum value of v0 so that the roller …
  3. physics

    A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80 m/s?
  4. Physics 1

    Consider a roller coaster that moves along the track shown in the figure below. Assume all friction is negligible and ignore the kinetic energy of the roller coaster's wheels. Assume the roller coaster starts with a speed of 19 m/s …
  5. Repost-Physics 1

    Consider a roller coaster that moves along the track shown in the figure below. Assume all friction is negligible and ignore the kinetic energy of the roller coaster's wheels. Assume the roller coaster starts with a speed of 19 m/s …
  6. physics

    A 10,000N car is on a roller coaster. at the top of the tallest hill (position 1) the reaches a hieght 36m above the lowest point on the roller coaster (position 2). after accelerating down the hill the roller coaster makes another …
  7. Physics

    A roller coaster works by gravitational energy. The coaster car is pulled up to a high point and then released, rolling downwards on the track through all manners of curves and loops. I have a short roller coaster car that I pull up …
  8. Algebra

    I NEED HELP A$AP, PLEASE! I don't understand how to do this :( I have to draw a short roller coaster on graph paper Directions: 1. Draw the side view of your roller coaster on graph paper. For the sake of simplicity, assume that your …
  9. Physics

    A 775 kg roller coaster car is at the top of a roller coaster car is at the top of a roller coaster as shown below. The height of the car at point A is the minimum height that is necessary for the car to stay on the loop. The radius …
  10. Science

    The Millennium Force is the highest roller coaster in North America. It reached a maximum height to 94.5 m. The total mass of the roller coaster car and its passengers is 1380 kg. The speed of the roller coaster is 41.1 m/s at its …

More Similar Questions