Question

a ball dropped freely takes 0.2s to cross the last 6m distance before hitting the ground. total time of fall is(g=10m/s2)​

Answer 1

Explanation:

so you answer is 0.7 seconds hope it is correct

Answer 2

ANSWER: 1.8 seconds

Explanation:

We are given,

time to cross last 6m t=0.2sec.

Last distance= 6m

Therefore,

$s = u + \frac{a}{2}(2n - 1)$

From this, u comes out to be 9m/sec.

Now total time T

$= \frac{2u}{g}$

From this, total time comes out to be 1.8 seconds.

Hope this helps