Question

An aeroplane is flying horizontally with a velocity of $600km/h$ and at a height of $1960m$. 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. $1200m$
• B. $0.33km$
• C. $3.33km$
• D. $33km$

Answer 1

The correct option is C $3.33km$

The velocity with which the bomb is released is $600km/h\left(horizontal\right)$.

Vertical velocity of the bomb is $zero$.

So.distance $AB=600\frac{5}{18}\ast t$ $t$ is the time taken by the bomb to reach the ground.

$1960=g\frac{t^2}{2}$

which gives $AB$ equal to $\mathrm{3.3.}km$.