Posted by
**anonymous** on
.

A projectile is fired with an initial speed of 1000 m/s at an angle of 37 degrees above the horizontal. If air resistance is neglected, the horizontal component of the projectile's velocity after 20 s is approximately

A) 600 m/s

B) 800 m/s

C) 640 m/s

D) 40 m/s

E) 160 m/s

please help to solve this problem! thanks