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3-2.Motion in Plane
medium
Neglecting the air resistance, the time of flight of a projectile is determined by
A
${U_{vertical}}$
B
${U_{horizontal}}$
C
$U = {U^2}_{vertical} + {U^2}_{horizontal}$
D
$U = U\,{({U^2}_{vertical} + {U^2}_{horizontal})^{1/2}}$
Solution
(a)Time of flight = $\frac{{2u\sin \theta }}{g} = \frac{{2{u_y}}}{g} = \frac{{2 \times {u_{{\rm{vertical}}}}}}{g}$
Standard 11
Physics