Finding kinetic energy of Shawn and his bike at constant velocity

[kza62]

Homework Statement

Shawn and his bike have a total mass of 43.5 kg. Shawn rides his bike 1.3 km in 10.4 min at a constant velocity.
The acceleration of gravity is 9.8 m/s^2
What is Shawn's kinetic energy?

Homework Equations

F = ma
Ff = u * Fn
Fn = mg
avgV = x/t
x = 1/2(Vf + Vi)t

The Attempt at a Solution

ok so I converted km to m and min to s:
x = 1300m
t = 624s
and then i used avgV = x/t so avgV = ~2.08333 m/s

i have no idea what kinetic energy is, this hasn't been covered in class yet but I wanted to get ahead because I think I am coming down with the flu. The answer to the problem is supposed to be 94.4014 J but I have no idea how to set this problem up to get this. Please help me! Thanks.

 

[rl.bhat]

The kinetic energy = 1/2*m*v^2

 

[kza62]

THAAATTSS what i needed ooohhh maaann thanks rl.bhat!
so it would be (0.5)(43.5)(2.08333)^2 = 45.3124 J

thanks again!