In the above diagram, a particle of mass"m" and charge(-q) initially moving along X-axis with velocity "v". The length of the plave system is "L" and uniform electric filed between the plates is "E". What is the vertical deflext of the particle at the far edge of the plate?

A particle of mass m and charge q is placed at rest in a uniform electric field E and then released. The K.E. attained by the particle after moving a distance y is

A charged particle of mass m and charge q moving with velocity [v = 3i+ 4j - 2k] enters a magnetic field [B = 2i - 5j + 3k ]at right angles to the direction of bar(B) . Find the expression of the force experienced by the particle.

Three particles A, B, C, of equal masses move with equal speed V along -the medians of an equiliteral triangle as shown in the diagram below. They collide at the centroid G of the triangle. After the collision A comes to rest, B retraces its path with speed V. What is the velocity of C ?