- #1
tec[H}nogeek
- 4
- 0
Ok so here's the picture that the problems are based on.
http://www.daocplace.com/tng/tng/uploader/uploaded/physics.JPG
Background Info:
The amusement park decides to redesign the rollercoaster by removing the safety ramp and replacing it with an ideal spring that will shoot the cart back through the roller-coaster backwards. The stretch of frictional track is made frictionless, set to 10.0 m long, and the giant spring is set up as shown, over another frictionless stretch of track.
As a note, the ramp on the far right is not part of the track. Also this is assuming that gravity is 10 m/s^2.
Question 1:
What minimum initial velocity does the car nee dto make it back to the top at the start of the ride?
I know this had to do with conservation of energy but I don't have any velocities to start off with, so I can't do any kinetic energy calculations.
Question 2:
If the park only has 20.0 m of space to devote to the slowing of the cart by the spring, what is the "k" of the spring required to get the cart to slow to a stop?
Again I am completely lost as to what to do here.
Any help would be greatly appreciated. I don't want to fail. :(
EDIT: D'oh. Didn't see the homework help zone. Sorrow.
http://www.daocplace.com/tng/tng/uploader/uploaded/physics.JPG
Background Info:
The amusement park decides to redesign the rollercoaster by removing the safety ramp and replacing it with an ideal spring that will shoot the cart back through the roller-coaster backwards. The stretch of frictional track is made frictionless, set to 10.0 m long, and the giant spring is set up as shown, over another frictionless stretch of track.
As a note, the ramp on the far right is not part of the track. Also this is assuming that gravity is 10 m/s^2.
Question 1:
What minimum initial velocity does the car nee dto make it back to the top at the start of the ride?
I know this had to do with conservation of energy but I don't have any velocities to start off with, so I can't do any kinetic energy calculations.
Question 2:
If the park only has 20.0 m of space to devote to the slowing of the cart by the spring, what is the "k" of the spring required to get the cart to slow to a stop?
Again I am completely lost as to what to do here.
Any help would be greatly appreciated. I don't want to fail. :(
EDIT: D'oh. Didn't see the homework help zone. Sorrow.
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