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

question 33

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) \(K_{B}=\frac{3}{2} K_{A}\) .