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A particle is projected upwards with a velocity of 100 m/s at an angle of 37° with the vertical. The time when the particle will move perpendicular to its initial direction is (g = 10m/s2, tan 53° = 4/3) 

(a) 10s 

(b) 12.5 s 

(c) 15 s 

(d) 16 s

1 Answer

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Best answer

Correct option (b)

Explanation:

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