Question

two identical malignant cancer cells with identical speeds in the blood flow, collide with each other . due to the specula adhesion of proteins on their surface, they stuck together after the collision. determine the direction of the motion of the combined masses after the collisions. of an angle (degree or radius), with respect to the positive x-xis. assume no external forces act ob the system. Hint; since speeds are identical, when v1 = v2 = v

Answer 1

Here if flow of blood is not considered and the cancer cells are moving in opposite direction before collision.

Then net momentum before collision is

mv - mv = 0

And according to conservation of momentum.

Final momentum will be also zero, hence after collision their velocity will be zero.