Questions
A ball is projected from ground with a speed of 20 at an angle of 450 with horizontal. There is a wall of 25 m height at a distance of 10m from the projection point. The ball will hit the wall at a height of
detailed solution
Correct option is B
Since, usinθ×t=10 m⇒ 20sin45°t=10⇒ t=1020sin45°=12 s Now, y=20sin45°t-12gt2=20×12×12-12×10×12=7.5 mTalk to our academic expert!
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