Question

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

• A. 1.2 km
• 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}}$ = 3.33 km.