A Boy Kicks a Football from Ground Level with an Initial

Multiple Choice

A boy kicks a football from ground level with an initial velocity of 20 m/s at an angle of 30° above the horizontal. What is the horizontal component of its velocity at the highest point of its trajectory?

A) 9.8 m/s
B) 17 m/s
C) 4.9 m/s
D) 8.7 m/s
E) 0 m/s