Step 1: If the electric and magnetic fields are parallel, the force on the charged particle due to the electric field will be in the same direction as the magnetic force.
Step 2: Since both forces act in the same direction, the charged particle will experience a uniform force, causing it to accelerate in a straight line.

As shown below, bob A of a pendulum having massless string of length \( R \) is released from \( 60^\circ \) to the vertical. It hits another bob B of half the mass that is at rest on a frictionless table in the center. Assuming elastic collision, the magnitude of the velocity of bob A after the collision will be (take \( g \) as acceleration due to gravity):

The magnitude of heat exchanged by a system for the given cyclic process ABC (as shown in the figure) is (in SI units):
