Answer:
(3) 5.4 × 10^3 J
Explanation:
The kinetic energy of the bicyclist can be calculated using the following equation:
[tex]K=\frac{1}{2}mv^2[/tex]
where
m = 75 kg is the mass of the bicyclist
v = 12 m/s is the speed of the byciclist
By substituting these numbers into the equation, we find:
[tex]K=\frac{1}{2}mv^2 = \frac{1}{2}(75 kg)(12 m/s)^2=5400 J=5.4 \cdot 10^3 J[/tex]
So, the correct answer is
(3) 5.4 × 10^3 J
