Question

A nucleus is at rest in the laboratory frame of reference. Show that if it disintegrates into two smaller nuclei the products must move in opposite directions.​

Answer 1

hope it will be helpful......... ☺☺plz mark me as a brainlist

Answer 2

Answer:

Nucleus is at rest initially,

e.g u = 0

Initial linear momentum = mu = 0

Let the nucleus disintegrates into two parts having mass m1 and m2 with speed v1 and v2 respectively.

Change in momentum after disintegration = m1v1 + m2v2

Here , external force = 0

According to law of conservation ,

Pi = Pf

0 = m1v1 + m2v2

V2 = -(m1/m2)V1

Here negative sign indicates that v1 and v2 are in opposite directions .