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JEE Mains · Physics · STD 11 - 3.2 motion in plane
A ball projected from ground at an angle of \(45^o\) just clears a wall in front. If point of projection is \(4\,m\) from the foot of wall and ball strikes the ground at a distance of \(6\,m\) on the other side of the wall, the height of the walI is ........ \( m\)
- A \(4.4\)
- B \(2.4\)
- C \(3.6\)
- D \(1.6\)
Answer & Solution
Correct Answer
(B) \(2.4\)
Step-by-step Solution
Detailed explanation
\begin{array}{l} As\,ball\,is\,projected\,at\,an\,angle\,{45^{ \circ \,}}to\,the\\ horizontal\,therefore\,Rang = 4H\\ or\,\,\,\,10 = 4H \Rightarrow H\frac{{10}}{4} = 2.5m\\ \left( {Range\, = 4m\, + 6\,m = 10m} \right)\\ Maximum\,height,\,H = \frac{{{u^2}{{\sin }^2}\theta…
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