Answer:
im sorry i dont know but this is for a challenge
Step-by-step explanation:
Answer:
The kinetic energy is 20,000\ J
Step-by-step explanation:
The kinetic energy of a body is defined as:

Where <em>m</em> is the mass of the roller coaster car
<em>s</em> is the speed and <em>k</em> is the kinetic energy
We know that 

Then the kinetic energy of the roller coaster car is:

Answer:
65,000 g is equivalent to 65 kilograms
Answer:
no clue
Step-by-step explanation:
I did it on the calculator the answer was 0.1833333333333333 i do not know if this is correct if its incorrect then srry :(