HI GUYS !
HERE IS A QUESTION FOR U
A stone is dropped from a certain height which can reach the ground in 5 seconds. If the stone is stopped after 3 s of its fall and then allowed to fall again, then the time taken by the stone to reach theground for the remaining distance is
a) 2 second
b) 3 second
c) 4 second
d) 8 second
I NEED WITH SOLUTION
THEN ONLY I WILL MARK AS BRILLIANT
Answers
Answered by
5
Answer:
Let h be the height, t=5 s
∴h=
2
1
gt
2
=
2
1
(9.8)(25)=122.5 m
Distance covered in 3 sec=
2
1
(9.8)(3)
2
=44.1 m
Remaining distance =122.5−44.1=78.4 m
If t s is the required time, then
78.4=0+
2
1
gt
2
⇒t
2
=
49
784
=16
⇒t=4s.
Answered by
1
this is your answer. Check the attachment and pls mark as brainliest
Attachments:

anonymousxyz01:
thanks
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