Question

A football is kicked from the ground with a speed of 30 m/s at an angle of 60º with the ground. What is the horizontal component of the football immediately after it is kicked?

a
30 m/s
b
30 tan(60º) m/s
c
30 sin(60º) m/s
d
30 cos(60º) m/s

Answer 1

Answer:

D

Explanation:

30 m/s is the hypothenuse. The horizontal component will be x. Using trig, you can see that

$cos(angle) = \frac{x}{hypotenuse}$