Question

what is the the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.
please help me w my homeworkk

Answer 1

Answer:

Explanation:

The kinetic energy of the roller coaster is  

2

⋅

10

5

J

Explanation:

The formula to calculate kinetic energy is,

E

k

=

1

2

m

v

2

Here,

The mass of the roller coaster is,  

m

=

1000

k

g

The speed of the roller coaster is,  

v

=

20

m

s

−

1

Therefore,

E

k

=

1

2

⋅

1000

⋅

20

2

=

2

⋅

10

5

J

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