Physics

posted by .

A 1200-kg roller coaster car is initially at the top of a rise, at point circle a. It then moves 145 ft, at an angle of 40.0° below the horizontal, to a lower point circle b.
(a) Choose the car at point circle b to be the zero configuration for gravitational potential energy of the roller coaster−Earth system. Find the potential energy of the system when the car is at points circle a and circle b, and the change in potential energy as the coaster moves between these points.
at point circle a J
at point circle b J
change in potential energy J

(b) Repeat part (a), setting the zero configuration with the car at point circle a
at point circle a J
at point circle b J
change in potential energy J

  • Physics -

    adf

  • Physics -

    I used the gravitational potential formula and plugged in 1200 * 9.8 * 45.31

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    Consider a roller coster car moving along a track from point A to point B to point C. a)if the roller coaster car starts from rest at point A (30m above the bottom of a dip (point b). What would be the speed of the car at the top of …
  2. physics

    A 1 x10^3 kg roller coaster car is initially at the top of a rise, at point A. It then moves 50 m at an angle of 40 degrees below the horizontal to a lower point, B. (a) Choosing point B as the zero level of gravitational potential …
  3. Physics

    A roller-coaster car speeds down a hill past point A and then rolls up a hill past point B. The car has a speed of 16.1 m/s at point A. The acceleration of gravity is 9.81 m/s^2. Radius of Circle A is 9.98 m. Radius of Circle B is …
  4. physics

    A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80 m/s?
  5. physics

    A roller coaster moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal. Next, it travels 135 ft at an angle of 40 degrees below the horizontal. Find the roller coasters displacement from its …
  6. physics

    A block of mass m = 4.30 kg is released from rest from point circle a and slides on the frictionless track shown in the figure below. (Assume ha = 5.20 m.) B=3.20 c=2.00 (a) Determine the block's speed at points circle b and circle …
  7. 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 …
  8. 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 …
  9. physics

    A roller-coaster car of mass 1.80 103 kg is initially at the top of a rise at point circle a. It then moves 40.8 m at an angle of 50.0° below the horizontal to a lower point circle b. (a) Find both the potential energy of the system …
  10. 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 …

More Similar Questions