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A projectile is launched at 45 degrees with speed v and g is the gravity magnitude. Its time of flight on level ground is
Av/g
B√2 v/g
C2v/g
Dv/(2g)
Answer & Solution
Correct answer: B. √2 v/g
T = 2v sin45°/g = 2v(1/√2)/g = √2 v/g.
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