TS EAMCET 11-Sep-2020 Shift 2 Solved Paper

When ball is at maximum height, its velocity is zero. From first equation of motion,
Distance travelled in n th second,
sn=u+‌

a

2

(2n−1)
Distance travelled in 2 nd second is given as
Distance travelled in 7 th second is equal to distance travelled in 2 nd second from highest point to vertically downward direction.
∴‌‌‌

s2

s7

=‌

s2

s2′

=‌

35

15

=‌

7

3

or 7:23