Respuesta :
“to predict the speed that a coaster will reach before it is ever placed on the track. ... When coaster goes up by height h then its gravitational potential energy increases by the amount m.g.h where m = mass of coaster, h = height of coaster and g = gravitational acceleration due to Earth”
Answer:
By using law of energy conservation , we can find how high the roller coaster will go.
Explanation:
What is law of energy conservation ?
Energy can neither be created nor destroyed , only its form can be changed.
- when roller coaster is moving it has kinetic energy .
- as it will go up , this kinetic energy will convert in to potential energy.
- it means at the top K.E. = P.E.
- [tex]m.g.h =\frac{1 }{2} .m.v^{2}[/tex]
- [tex]h =\frac{v^{2} }{2g}[/tex]
Hence we can predict how high a roller coaster can go knowing its velocity.
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