A bullet is fired with a speed of $1000\,\,m/\sec $ in order to hit a target 100 m away. If $g = 10\,\,m/{s^2}$, the gun should be aimed
A bullet is fired with a speed of $1000\,\,m/\sec $ in order to hit a target 100 m away. If $g = 10\,\,m/{s^2}$, the gun should be aimed
Directly towards the target
$5 \,cm$ above the target
$10 \,cm$ above the target
$15\, cm$ above the target
A bullet is fired with a speed of $1000\,\,m/\sec $ in order to hit a target 100 m away. If $g = 10\,\,m/{s^2}$, the gun should be aimed
Bullet will take $\frac{{100}}{{1000}} = 0.1\,sec$ to reach target.
During this period vertical distance (downward)
travelled by the bullet
$ = \frac{1}{2}g{t^2}$$ = \frac{1}{2} \times 10 \times {(0.1)^2}m = 5\;cm$
So the gun should be aimed 5 cm above the target.
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