A Cannon Fires a 2-Kg Exploding Projectile Across a Level

Multiple Choice

A cannon fires a 2-kg exploding projectile across a level field on a windless day.The projectile leaves the cannon at a speed of 30 m/s at an angle of 60 degrees with respect to the horizontal.When the projectile reaches its maximum height,it explodes into two 1-kg pieces.One of the pieces falls straight down.How far away from the cannon does the second piece land?

A) 34 m
B) 40 m
C) 79 m
D) 92 m
E) 120 m