Shown are the trajectories of
projectile. Which have a maximum
time of flight?
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Answer:
T₁=T₂=T₃
Explanation:
Since the height is same;we have H₁=H₂=H₃
H=u²sin²θ/2g
H₁=H₂=H₃ =>u₁²sin²θ₁=u₂²sin²θ₂=u₃²sin²θ₃
=>u₁sinθ₁=u₂sinθ₂=u₃sinθ₃
T₁/T₂=2u₁sinθ₁/2u₂sinθ₂=1
T₁=T₂ SIMILARLY T₁=T₃
therefore;T₁=T₂=T₃
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