I couldn't solve this question.

jectile is fired from a cliff 70 m above the ground level. A wind is blowing giving the projectile an acceleration of 18m/s in the positive direction s. The projectile is fired with an initial speed of 145 m /s in the direction of the vector 3i + 0j + 4k. Assume that gravity is 10m/s2. velocity vector of the projectile is v(t) 70 18 position vector of the projectile is r (t) = i+