explain your soltion please!!!!!! A projectile on Earth is launched from the ori

Question

explain your soltion please!!!!!!

A projectile on Earth is launched from the origin such that at t = 2.5 s its position is given by r rightarrow1(t = 2.5) = 7i^ + 2 j^ where the coordinates are measured in meters. A second projectile is launched from the position r rightarrow2i = 2 i^ again, measured in meters. The two projectiles collide at the position given by Eq. 2. If the second projectile is launched 2 seconds after the first, what must be the initial velocity of the second projectile, v rightarrow2i for the collision to occur as specified? At the point of collision, what is the angle between the velocities of the two particles? Bonus When should the second projectile be launched so as to minimize v2i? What is this velocity?

Explanation / Answer

a)v=(7-2)/.5=10 m/s

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