Answer:
C) 100 joules
Explanation:
The kinetic energy of an object is given by:
[tex]K=\frac{1}{2}mv^2[/tex]
where m is the mass of the object and v its speed.
In this problem, we have an object of mass m = 50 kg and v = 2 m/s, so by using the formula we can find its kinetic energy:
[tex]K=\frac{1}{2}(50 kg)(2 m/s)^2=100 J[/tex]
