Two Clowns Are Launched from the Same Spring-Loaded Circus Cannon $K_{A}=\frac{3}{2} K_{B}$

Multiple Choice

Two clowns are launched from the same spring-loaded circus cannon with the spring compressed the same distance each time. Clown A has a 40-kg mass; clown B a 60-kg mass. The relation between their kinetic energies at the instant of launch is:

A) $K_{A}=\frac{3}{2} K_{B}$ .
B) $K_{A}=\sqrt{\frac{3}{2}} K_{B}$ .
C) KA = KB.
D) $K_{B}=\sqrt{\frac{3}{2}} K_{A}$ .
E) $K_{B}=\frac{3}{2} K_{A}$ .