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Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.

196000 N
200000 N
200000 J
196000 J

Respuesta :

Histrionicus

Answer:

The correct answer is - 200000 J

Explanation:

We use the formula of kinetic energy:

The formula to calculate kinetic energy is,

Here,

Ec =1/2 x  m x v^2

The mass of the roller coaster is,  m  =  1000  k g

The speed of the roller coaster is, v = 20.0 m/s

 Therefore,

Ec=1/2 x 1000kg x (20m/s)^2 = 200.000Joule

200,000J

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