A person standing on a moving truck, throws a stone vertically up relative to himself. To a person, standing on the ground, the stone appears to: (immediately after being thrown).

The correct option is C Move along a parabolic path

Given,
A person standing on a moving truck, throws a stone vertically up relative to himself
${\overrightarrow{v}}_{ST}={\overrightarrow{v}}_S-{\overrightarrow{v}}_T$
${\overrightarrow{v}}_S={\overrightarrow{v}}_{ST}+{\overrightarrow{v}}_T$
$={\overrightarrow{v}}_x\hat{i}+{\overrightarrow{v}}_y\hat{j}$

So, stone will take a parabolic path
Final Answer: (c)