Aroller coaster with a potential energy of 235,200 j sits at the top of a 30 m high hill. what is the mass of the roller coaster? (formula: pe = mgh) 800 kg 7,840 kg 8,000 kg 78,400 kg

The mass of roller coaster is 800 kg.

Explanation:

Given that,

Potential energy = 235200 J

Height = 30 m

Using formula of potential energy

P.E = mgh

Where, m = mass

g = acceleration due to gravity

h = height

We substitute the value into formula

The mass of the roller coaster is

Hence, The mass of roller coaster is 800 kg.

all of the answers are correct.

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explanation:

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