Question

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

Answer 1

Answer: (D)

24.5 m

Answer 2

The separation between two bodies, two second after the release of second body is given by :

s = $\frac{1}{2}g(t_{1}^{2} - t_{2}^{2})$ = $\frac{1}{2} \times 9.8 \times (3^{2} - 2^{2}) = 24.5$m.