An aeroplane moving horizontally with a speed of $720 \,km/h$ drops a food pocket, while flying at a height of $396.9\, m$. the time taken by a food pocket to reach the ground and its horizontal range is (Take $g = 9.8 m/sec^{2}$)
An aeroplane moving horizontally with a speed of $720 \,km/h$ drops a food pocket, while flying at a height of $396.9\, m$. the time taken by a food pocket to reach the ground and its horizontal range is (Take $g = 9.8 m/sec^{2}$)
$3 \,sec$ and $2000 \,m$
$5\, sec$ and $500\, m$
$8\, sec$ and $1500\, m$
$9 \,sec$ and $1800 \,m$
An aeroplane moving horizontally with a speed of $720 \,km/h$ drops a food pocket, while flying at a height of $396.9\, m$. the time taken by a food pocket to reach the ground and its horizontal range is (Take $g = 9.8 m/sec^{2}$)
$t = \sqrt {\frac{{2h}}{g}} = \sqrt {\frac{{2 \times 396.9}}{{9.8}}} \tilde - 9\,\sec $ and $u = 720\,km/hr = 200\,m/s$
$R = u \times t = 200 \times 9 = 1800\,m$
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