1.

A stone is dropped from a cliff . Its speed after it has fallen 100 m is

Answer» Given, s= 100m, u = 0m/s, we know, g = 9.8m/s².Then, v=?By v²-u² = 2gs,-> v²-0 = 2(9.8)(100)-> v² = 1960-> v = √1960 = √196 x √10-> v = 14√10 m/s --------- (answer)


Discussion

No Comment Found