Question

An aeroplane is flying horizontally with a velocity of 600 km/h at a height of 1960 m. When it is vertically at a point A on the ground, a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

• A. 1200 m
• B. 0.33 km
• C. 3.33 km
• D. 33 km

Answer 1

The correct option is C

3.33 km

Horizontal displacement of the bomb
AB = Horizontal velocity $\times$ time available
$AB=u\times \sqrt{\frac{2h}{g}}=600\times \frac{5}{18}\times \sqrt{\frac{2\times 1960}{9.8}}=3.33km$