A projectile launched upwards from ground has a range of 180m and its timeof flight is 10 s.The velocity(in m/s) after start is (angle of projection with horizontal is theta)?

Question

anonymous · Answer

@heena help

anonymous · Answer

shakir wat u dont understand in this tell me

anonymous · Answer

theta is not give so fow can we find the velocity??

anonymous · Answer

hmm ok den first tell me the formula of flight and range?

anonymous · Answer

r=u^2sin2theta/g      T=2usintheta/g @heena

anonymous · Answer

@Kryten

anonymous · Answer

ok now u have time of flight so u can find 2usintheta then put the value of using theta in R formula

anonymous · Answer

ok let me try

anonymous · Answer

k i m here and show me ur work too if u till dont get the ans

anonymous · Answer

yw :)

anonymous · Answer

@heena  after solving i got a wrong answer will u help