Question

In case of projectile, velocity of projection is 30i+40j m/s time of flight is
1) 2s
2) 4s
3) 8s
4) 6s​

Answer 1

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$\overrightarrow{v} = 30\hat{i} + 40 \hat{j} \:$

HANCE, VELOCITY ALONG Y AXIS IS 40 m/s

HALF WAY OF THE TRAJECTORY,

$v = u - gt \\ \longrightarrow \: 0 = 40 - gt \\ \longrightarrow \boxed{ t = 4} \: \: \: \: \: \: \: \: \: \:$

$\bold {\boxed {\boxed{///MARK \: IT \: BRAINLIEST///}}}$

Answer 2

${\boxed{\boxed{\fcolorbox{black}{red}{Your\:Answer Is 4s}}}}$