(i) The acceleration produced in a body of given mass is directly proportional to the force applied on it. i.e.,
a ∝ F (if mass remains constant)
The graph plotted for acceleration on force for a constant mass is as shown below —
(ii) The force needed to produce a given acceleration in a body is proportional to the mass of the body. i.e.,
F ∝ m (if acceleration remains the same)
The graph plotted for force on mass for a constant acceleration is shown below —

