Astone falls from the top of a building and hits the ground at a speed of 32m/s. the air resistance on the stone is very small and may be neglected. calculate the time of fall. draw the speed-time graph of the falling stone.

This really made me think no cap

Which element of a health-related website would suggest that the site may not be credible or reliable?

hyperlinks to other fitness, nutrition, or medical sites
tips for achieving instant positive results or an instant cure
details about a recent study on a medical issue or condition
safety warnings related to the information that is presented

It is due to the relative velocity.

When you go opposite, the velocities of both buses get added increasing relative velocity

When we overtake it (in same direction) then the velocities get subtracted. Hence reducing relative velocity