A Projectile Is Fired at 25^o Above the Horizontal

Multiple Choice

A projectile is fired at 25^o above the horizontal. At the highest point in its trajectory, its speed is 100 m/s. If air resistance is ignored, the initial velocity had a horizontal component of

A) 0 m/s.
B) 100 cos(25^o) m/s.
C) 100 sin(25^o) m/s.
D) 100 m/s.
E) 100/sin(25^o) m/s.