(a) An unstable particle with a mass equal to 3.34 ✕10−27 kg is initially at rest. The particle decays intotwo fragments that fly off with velocities of 0.977c and−0.851c, respectively. Find the masses of the fragments.(Hint: Conserve both mass–energy and momentum.)
| m(0.977c)= | kg |
| m(-0.851c) = | kg |
(b) An unstable particle at rest breaks up into two fragments ofunequal mass. The mass of the lighter fragment is equal to4.00 ✕ 10−28 kg and that of the heavier fragment is 1.63✕ 10−27 kg. If the lighter fragment has a speed of0.893c after the breakup, what is the speed of the heavierfragment?
c
