For this case we have that by definition, the kinetic energy is given by the following formula:
[tex]k= \frac {1} {2} * m * v ^ 2[/tex]
Where:
m: It is the mass
v: It is the velocity
According to the data we have to:
[tex]m = 100 \ kg\\v = 9 \frac {m} {s}[/tex]
Substituting the values we have:
[tex]k = \frac {1} {2} * (100) * (9) ^ 2\\k = \frac {1} {2} * (100) * 81\\k = 50 * 81\\k = 4050[/tex]
finally, the kinetic energy is [tex]4050 \ J[/tex]
Answer:
Option A
