Question

a stone is drop from a certain height distance converted by it in one second is____​

Answer 1

9.8 m

because when we drop a stone from certain height then acceleration due to gravity works on it in the value of g is 9.8.

Answer 2

Answer:

4 s

Explanation:

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.

I hope this helps you

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