If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is?

If a particle is projected inside a horizontal tunnel which is 554 cm

1.	If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is?
A.	8¬¨‚àû
B.	9¬¨‚àû
C.	10¬¨‚àû
D.	11¬¨‚àû
Answer» D. 11¬¨‚àû

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If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is?

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