Calculating Mechanical Energy of a Roller Coaster | Physics Explained

[@colinkerr7774]

I felt confused at 5:50 because the problem I’m answering has point A at 85 and point B at 20. When you said ground level did you mean that I’m just plugging in the difference/displacement of the point to point? So like do I have 20 for height in B?

[@eye-conicben1048]

At point C is it only kinetic? I though it was only potential?

[@INTEGRALPHYSICS]

At ground level (our reference height of zero), all the energy is Kinetic.

[@eye-conicben1048]

@@INTEGRALPHYSICS Yeah i mistook. A car crushed my leg and i am home since 2 months. I only saw this channel now. Should've discovered it faster.

[@kamilanajderek5231]

What of my starting point is point B not point A. How does my calculation looks like?

[@INTEGRALPHYSICS]

The total mechanical energy (KE+U) at any point equals the total mechanical energy (KE+U) at any other point.

[@JahKnoxTV]

The music in the background is distracting.

[@INTEGRALPHYSICS]

Thanks. Quite a few people had the same feedback on some of my other videos; No more music on my newer vids...

[@byeapatrice5859]

how is it became 14m/s?

[@INTEGRALPHYSICS]

Rearranging the equation at point C for Vf, then solving for Vf yields 14m/s

[@gracemulenga2183]

Thanx

[@INTEGRALPHYSICS]

No problem