Question

What is the kinetic energy of a 620.0 kg roller coaster moving with a velocity of 9.00 m/s? Round to 3 significant
figures
0 2.790 J
5,580 J
025,100 J
050,200 J

Answer 1

Answer:

I think C

Explanation:

kinetic energy formula: 1/2mv^2

1/2(620kg)(9m/s)^2

1/2(620kg)(81m/s)

1/2(50220)

KE = 25110 J