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Ann [662]
3 years ago
14

How much kinetic energy does a roller coaster have if its mass is 3000 kg and is moving at 30 m/s

Physics
1 answer:
Jobisdone [24]3 years ago
3 0
The Kinetic energy of an object is given by:
E_k= \frac{1}{2}mv^2

Where m is the mass of the object (kg) and v is the velocity of the object (ms-1)

Substituting in:
E_k= \frac{1}{2}*3000*30^2 = 1350000J
Therefore the Kinetic energy of the object is 1.35MJ

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