Physics, asked by rsharathi, 7 months ago

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 Aяχтιc
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 anonymousxyz01
1

this is your answer. Check the attachment and pls mark as brainliest

Attachments:

anonymousxyz01: thanks
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