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Question Number 25838 by ajfour last updated on 15/Dec/17

Commented by ajfour last updated on 15/Dec/17

$(i) D e t e r m i n e ∠ θ s u c h t h a t$ $p r o j e c t i l e h i t s i n c l i n e d p l a n e$ $p e r p e n d i c u l a r l y a t P .$ $(i i) F i n d t h e c o e f f i c i e n t o f$ $r e s t i t u t i o n e s u c h t h a t a f t e r$ $a n o t h e r b o u n c e a t Q p r o j e c t i l e$ $r e t u r n s t o p o i n t o f p r o j e c t i o n O .$
Commented by ajfour last updated on 16/Dec/17

$n o t c o m p l e t e i s u p p o s e ?!$
Commented by ajfour last updated on 17/Dec/17

$(i) T o h i t a t P p e r p e n d i c u l a r l y$ $u \cos θ - (g \sin α) T_{0} = 0, w h e r e$ $(u \sin θ) T_{0} - \frac{(g \cos α) T_{0}^{2}}{2} = 0$ $s o \tan θ = \frac{1}{2 \tan α}$ $\Rightarrow θ = \tan^{- 1} (\frac{1}{2 \tan α}) .$
Commented by jota@ last updated on 17/Dec/17

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