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1 point A roller coaster is 20 m high and traveling 11 m/s. If the roller coaster has a mass of 150 kg, what is its total energy? (only put the number, no units or commas)
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1 vote
1 vote
1 point

A roller coaster is 20 m high and traveling 11 m/s. If the roller coaster has a
mass of 150 kg, what is its total energy? (only put the number, no units or
commas)

User Edoardotognoni
by
3.3k points

1 Answer

17 votes
17 votes

Answer:

ETotal=38505J

Step-by-step explanation:

Known values:

m=150kg

h=20m

v=11m/s

KE=mv^2/2

PE=mgh

ETotal=PE+KE

KE=(150(11^2))/2

KE=9075

PE=150(9.81)(20)

PE=29430

ETotal=9075+29430

ETotal=38505J

User Habib
by
2.9k points
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