Two particles are projected from the same point with same speed $u$ at angles of projection $α$ and $β$ from
horizontal. The maximum heights attained by them are h₁ and h₂ respectively, R is the range for both. If
t₁ and t₂ are their times of flight respectively, then which amongst the option{s) is/are incorrect?

Question

Infinity Learn · Accepted Answer

Range becomes equal at complimentary angle. Hence,β$$=90$$°$$-$$α or α$$+$$β$$=90$$°$$=$$π$$/2(b)$$   $$h1=u2sin2$$α$$2g$$    ⇒  $$h2=u2cos2$$α$$2g$$                     As, β$$=90$$°$$-$$α     ∴$$4h1h2=2u2sin$$α$$cos$$α$$g=u2sin2$$α$$g=R(c)$$  $$t1t2=(2usin$$α$$/g)(2ucos$$α$$/g)=$$$$tan$$α(d)  $$h1h2=$$$$tan$$α

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