Question

a stone is thrown vertically upward and after sometime it come back and fall in the ground draw the speed time graph of its upwards and downwards journey asuming that its look time during the journey

Answer 1

Let the initial velocity=u m/s

Let ' t' be the time taken to reach the maximum height h.

At maximum height, velocity becomes zero and the ball starts it's backward journey .

we can see that velocity in backward journey increases but in negative direction till the stone reaches to ground.