Question

What is the stone’s velocity after 1 second?
m/s

Answer 1

v = d : t

d = distance/position

t = time

from the graph for t = 1 s, d = 3 m, so the velocity of the stone:

v = 3 : 1 = 3 m/s

Answer 2

we know that ,

`velocity = (displacement)/(time) \\ \\ velocity = (2m)/(1s) \: = \: 2 \: m \: s {}^( - 1)`

hope helpful~