An aeroplane is flying vertically upwards. When it is at a height of `1000 m` above the ground and moving at a speed of `367 m//s`., a shot is fired at it with a speed of 567 `ms^(-1)` from a point directly below it. What should be the acceleration of aeroplane so that it may escape from being hit?

Options

A. `gt 5m//s^(2)`
B. `gt 10m//s^(2)`
C. `lt 10m//s^(2)`
D. Not possible

Answer

b

Explanation

`0=(200)^(2)-2(a_(rel))(1000)`
or `a_(rel)=20m//s^(2)`