To find the mass of the cat, you can use the formula for kinetic energy, which is:
KE = (1/2) * m * v^2
where KE is the kinetic energy, m is the mass, and v is the velocity.
You can rearrange this formula to solve for mass:
m = (2 * KE) / v^2
Plugging in the values given, you get:
m = (2 * 91.7 J) / (4.65 m/s)^2
Solving this equation gives a mass of approximately 2.07 kilograms.