Question

a stone dropped from a height covers 24.5m in the last seconds of its fall . the time of fall is

6s
3s
4s
5s​

Answer 1

Answer:

hєчα mαtє

ur αnѕ.

4ѕ. ríght αnѕѕ

Answer 2

Explanation:

Given: u=0, s= 24.5 m, t= ?

we know that

s= ut+ 1/2 at²

24.5m= 0×t+ 1/2 ×v-u/t × t²

24.5 m= 0+ 1/2×