Question

A body is thrown vertically upwords with initial
50 mls and finally comes back to its exact initial position Draw its velocity time graph.​

Answer 1

Velocity will first decrease according to the equation v=u−gt where u is initial velocity(at t=0 ) so the graph can't start from origin because u is not zero as thrown with some velocity and v is final velocity. then t=u/g the v will become zero then it will start increasing in opposite direction , if the upward direction is taken as positive then the downward velocity will be negative.

Option A is correct as after certain point velocity becomes negative and get increasing.