Q. 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
A) $4.9\ m$
B) $9.8\ m$
C) $19.6\ m$
D) $24.5\ m$
Explanation
(d) The separation between the two bodies, two seconds after the release of second body
$= \frac{1}{2} \times 9.8\left\lbrack (3)^{2} - (2)^{2} \right\rbrack = 24.5\ m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.