If retardation produced by air resistance of projectile is one-tenth of acceleration due to gravity, the time to reach maximum height

Question: If retardation produced by air resistance of projectile is one-tenth of acceleration due to gravity, the time to reach maximum height

(A) Decreases by 11 percent

(B) Increases by 11 percent

(C) Decreases by 9 percent

(D) Increases by 9 percent

Answer: option(C)

solution:

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