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# a relief aeroplane is flying at a constant height of 1960 M with the speed 600 km per hour above the ground towards a point directly over a person struggling in a flood water at what angle of sight with the vertical should the pirate release a survival kit to reach the person in the flood water

2 years ago

Arun
25768 Points

Dear Keshav

Let @ is the angle of sight

then

tan@ = x / h

horizontal speed of kit = vx = 600 km/hr = 166.66 m/sec

vertical speed v
v^2 – u^2 = 2as

v^2 = 2 * 10 * 1960

v = 197.98 m/sec

tan@ = 197.98 / 166.66 = 1.18

@ = tan^-1 (1.18)
2 years ago
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