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An aeroplane when it is vertically above...

An aeroplane when it is vertically above the point A on the ground, drops a bomb which hits target B on the ground. If the plane is moving at a height of 1.96 km from the ground with a speed of 300 m/ sec, the distance between A and B (neglecting air resistance) is

A

6000m

B

196m

C

1.96m

D

19.6m

Text Solution

Verified by Experts

Let x be the distance between Aand B , then
`x= usqrt ((2h)/(g)) `
Horzontal projection from an altitude
`300sqrt((2xx 1960)/(9.8))= 600m`
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