Which of the following option correctly describes the variation of the speed ` ` and acceleration `'a'` of a point mass falling vertically in a viscous medium that applies a force `F=-kv`, where `'k'` is constant, on the body?
(Graphs are schematic and drawn to scale)

Which of the following optiona correctly describes the variation of the speed upsilon and acceleration a of a point mass falling vertically in a viscous medium that applies a force F=-KC where K is a constant on the body ? (graphs are schematic and not drawn to scale)

Which of the following optiona correctly describes the variation of the speed upsilon and acceleration a of a point mass falling vertically in a viscous medium that applies a force F=-KC where K is a constant on the body ? (graphs are schematic and not drawn to scale)

Which one of the following given graphs represents the variation of rate constant (k) with temperature (f) for an endothermic reaction ?

From amongst the following curves, which one shows the variation of the velocity v with time t for a small sized spherical body falling vertically in a long column of a viscous liquid

From amongst the following curves, which one shows the variation of the velocity v with time t for a small sized spherical body falling vertically in a long column of a viscous liquid

In a uniform electric field, a point charge of mass m and charge q is released from rest. If there are no other forces acting on the particle, then which of the following graphs, correctly show the dependence of the particles speed v on the distance x travelled by the particles speed v on the distance x travelled by it? [Graphs are schematic and not drawn to scale]