A body is released from a great height and falls freely towards earth. Another body is released from

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2.Motion in Straight Line

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A body is released from a great height and falls freely towards the earth. Another body is released from the same height exactly one second later. The separation between the two bodies, two seconds after the release of the second body is.......$m$

A

$4.9$

B

$9.8$

C

$19.6$

D

$24.5$

Solution

(d) The separation between the two bodies, two seconds after the release of second body

$ = \frac{1}{2} \times 9.8[{(3)^2} – {(2)^2}] = 24.5\;m$

Standard 11

Physics

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(JEE MAIN-2022)