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)K_A = K_B. D) $K _ { B } = \sqrt { \frac { 3 } { 2 } } K _ { A }$ . E) $K _ { B } = \frac { 3 } { 2 } K _ { A }$ .

Question

Quizplus · Accepted Answer

The kinetic energy is the same for both clowns because the same amount of potential energy from the spring is converted into kinetic energy, regardless of their masses.

Two Clowns Are Launched from the Same Spring-Loaded Circus Cannon KA=32KBK _ { A } = \frac { 3 } { 2 } K _ { B }KA​=23​KB​

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