The diagram shows the trajectory of a positively charged projectile particle being deflected by a heavy, stationary positive nucleus. Points A and B are located at equal distances from the nucleus, and point P is the point of closest approach (rminr_{\text{min}}rmin).
Which statement correctly describes the physical quantities of the projectile particle?
The velocity of the particle is the same at points A and B because they are at equal distances from the nucleus.
As the particle moves from A to P, its kinetic energy decreases while the magnitude of its acceleration decreases.
At point P, the particle's electric potential energy is at a maximum, and the magnitude of its acceleration is also at a maximum.
The total mechanical energy of the particle-nucleus system is greater at point P than at points A and B.
