A projectile is fired with an inital speed ofvi20ms at an

Question

A projectile is fired with an inital speed ofv_i=20m/s at an angle θ=30^o with the horizontal.

a. Find the horizontal component of theprojectiles's velocity at the instant jus before it hits the ground
b. Find the vertical component of the projectiles's velocity atthe instant just before it hits the ground
c. Find the magnitude of the projectile's velocity at theinstant just before it hits the ground.
d.The angle made the projectile's velocity vector with thehorizontal at the instant just before it hits the ground.