Question

A charged particle x moves directly towards another charged particle y. for the x plus y system, the total
momentum is P and the total energy is E.
(A) P and E are conserved if both x and y are free to move
(B)(a) is true only if x and y have similar charges
(C) If Y is fixed , E is conserved but not P
(D )If Y is fixed, neither E nor P is conserved​

Answer 1

Answer:

A charged particle X moves directly towards another charged particle Y. For the X plus Y system, the total momentum is p and the total energy is E. (a) p and E are conserved if both X and Y are free to move. ... Energy will be conserved whether Y is fixed or free to move because no dissipating force is present.

Answer 2

Answer:

P and E are conserved if both x and y are free to move

Explanation:

IN an isolated system the net momentum and energy remains constant