Question

The projectile was fired at an angle of 35 ° to the horizon with an initial velocity of 80m / s. 400 m from the firing point there is a wall. Determine the time it takes the projectile to hit the wall. When analyzing, ignore the influence of air resistance.

Answer 1

$v_x=80\cdot\cos35°=65.53\ (m/s)$

$t=400/65.53=6.1\ (s)$ . Answer