Question

It turns out that the can didn’t actually contain dog food after all(I said that they built a ship to carry them at relativistic speeds. Inever said that they could read the label on a can).Much to their dismay, the dogs pull over by the side of the road and see that the can has broken openand all that is inside is an unstable particle. The particle is at rest with respect to the dogs the instant before it spontaneous decays into two new particles.No external forces act upon the particle or its fragments. One of the particles has a speed of 0.60c along the +x axis and a mass of 6.68x10-27kg.The other particle has a mass of1.67x10-27kg.(a) What is the speed (and direction) of the less massive fragment?(b) What would be the total energy of the more massive fragment? (c) Whatwould be the kinetic energy of the more massive fragment? ***Note that youcan do parts (b) and (c) even if you cannot answer part (a)since they reference the more massive fragment.***

Answer 1

(a) Equating Momentum we get that other particle will go in -x direction.

As particles are travelling near speed of light.

(b)

(c)