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An aero plane flying horizontally at a height of 3 km. Above the ground is observed at a certain point on earth to subtend an angle of 600. After 15 sec flight, its angle of elevation is changed to 300. The speed of the aero plane (taking √3=1.732)
5Q:
An aero plane flying horizontally at a height of 3 km. Above the ground is observed at a certain point on earth to subtend an angle of 600. After 15 sec flight, its angle of elevation is changed to 300. The speed of the aero plane (taking √3=1.732)
- 1230.63 m/secfalse
- 2230.93 m/sectrue
- 3235.85 m/secfalse
- 4236.25 m/secfalse
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