Question

two bodies start falling freely from rest from the same height at an interval of 1s how long after the first body begins to fall with the two bodies be 10m apart​

Answer 1

Explanation:

Let x

1

be the distance travelled by first body.

Let x

2

be the distance travelled by second body.

Let after n seconds after fall of first body , both bodies to be 10m apart.

Using s=ut+

2

1

gt

2

,

⇒−x

1

=0×n−

2

1

gn

2

⇒x

1

=

2

1

gn

2

,

⇒−x

2

=0×(n−1)−

2

1

g(n−1)

2

⇒x

2

=

2

1

g(n−1)

2

,

Given x

1

−x

2

=10=

2

1

gn

2

−

2

1

g(n−1)

2

⇒n=1.5 s

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