An aeroplane moving horizontally at a speed of 200 m s- 1 and at a height of 8 × 103 m is to drop a bomb on a target. The horizontal distance from the target should the bomb be released is (Take g=10 m s- 2 )

Question

An aeroplane moving horizontally at a speed of 200 m s- 1 and at a height of 8 × 103 m is to drop a bomb on a target. The horizontal distance from the target should the bomb be released is (Take g=10 m s- 2 ) (A) 9124m (B) 8714m (C) 8000m (D) 7234m

Tardigrade Admin · Accepted Answer

mathrmt=√(2 h/g)=√(2(8 × 103)/10)=√1600=40 mathrm~s x=vt=(200)(40)=8000m

Q. An aeroplane moving horizontally at a speed of $200 m s^{- 1}$ and at a height of $8 \times 1 0^{3} m$ is to drop a bomb on a target. The horizontal distance from the target should the bomb be released is (Take $g = 10 m s^{- 2}$ )

$9124 m$

$8714 m$

$8000 m$

$7234 m$

$t = \frac{2 h}{g} = \frac{2 ( 8 \times 1 0 ^{3} )}{10} = 1600 = 40 s$
$x = v t = (200) (40) = 8000 m$

Q. An aeroplane moving horizontally at a speed of 200ms−1 and at a height of 8×103m is to drop a bomb on a target. The horizontal distance from the target should the bomb be released is (Take g=10ms−2 )

9124m

8714m

8000m

7234m