Q. An aeroplane moving horizontally at a speed of $200\ m/s$ and at a height of $8.0 \times 10^{3}\ m$ is to drop a bomb on a target. At what horizontal distance from the target should the bomb be released
A) $7.234\ km$
B) $8.081\ km$
C) $8.714\ km$
D) $9.124\ km$
Explanation
(b) Horizontal distance travelled by the bomb $S = u \times t$
$= 200 \times \sqrt{\frac{2h}{g}} = 200 \times \sqrt{\frac{2 \times 8 \times 10^{3}}{9.8}} = 8.081\ km$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.