WB JEE 2020 | Motion Question 5 | Physics

WB JEE 2020

MCQ (Single Correct Answer)

-0.25

A fighter plane, flying horizontally with a speed 360 km/h at an altitude of 500 m drops a bomb for a target straight ahead of it on the ground. The bomb should be dropped at what approximate distance ahead of the target? Assume that acceleration due to gravity (g) is 10 ms^-2. Also, neglect air drag.

1000 m

50$${\sqrt 5 }$$ m

500$${\sqrt 5 }$$ m

866 m

WB JEE 2019

MCQ (Single Correct Answer)

-0.25

Two particles are simultaneously projected in the horizontal direction from a point P at a certain height. The initial velocities of the particles are oppositely directed to each other and have magnitude v each. The separation between the particles at a time when their position vectors (drawn from the point P) are mutually perpendicular, is

$${{{v^2}} \over {2g}}$$

$${{{v^2}} \over g}$$

$${{4{v^2}} \over g}$$

$${{2{v^2}} \over g}$$

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