If free falling body covers a distance half of the total height of in last second of it fall then find the time of fall & height of fall
please answer correctly
Answers
Answered by
1
Answer:
2
h
=
2
1
g(t−1)
2
...(1)
h=
2
1
gt
2
...(2)
t
2
+1−2t=
t
t
2
⟹t
2
−4t+2=0
g(t−1)
2
=
2
gt
2
t=
2
4±
16−8
=
2
4±2
2
t=2±
2
Now t−1>0 if t=2−
2
t−1=2
2
−1=1−
2
<0
(ii) So t=2+
2
(i) h=
2
1
gt
2
=17m
Explanation: i hope this might help you
Similar questions