- #1
jbot2222
- 14
- 0
okay i applied work and conservation of energy to this problem, but the solution doenst come out right!
Suppose the roller coaster in the figure below passes point A with a speed of 1.76 m/s
If the average force of friction is equal to one fifth of its weight, with what speed will it reach point B? The distance traveled is 45.8 m and h = 29.4 m.
1/2mvi^2 + mgh - 1/5md = 1/2mvf^2
the m's cancel out and u should be able to solve for Vf, but it doest come out right!
Suppose the roller coaster in the figure below passes point A with a speed of 1.76 m/s
If the average force of friction is equal to one fifth of its weight, with what speed will it reach point B? The distance traveled is 45.8 m and h = 29.4 m.
1/2mvi^2 + mgh - 1/5md = 1/2mvf^2
the m's cancel out and u should be able to solve for Vf, but it doest come out right!