question_answer

A body is thrown vertically upwards. Which one of the following graphs correctly represent the velocity vs time? [JEE Main 2017]

A)

B)

C)

D)

Correct Answer: A

Solution :

[a] Velocity at any time t is given by

\[v=u+at\]

\[v={{v}_{0}}+(-g)t\]

\[v={{v}_{0}}-gt\]

\[\Rightarrow \]   straight line with negative slope