Question

a projectile is thrown with initial velocity V an angle 30 degree with the horizontal if it remains in the air for one second what will will the initial velocity be​

Answer 1

Answer:

10 m/s

Step-by-step explanation:

$\displaystyle t = \frac{2u\sin\theta}{g}$

t = 1 sec

Θ = 30°

g = 10m s^-2

$\displaystyle 1 = \frac{2u\sin30^\circ}{10} = \frac{u}{10}$

∴ u  = 10m/s