Question

A ball is travelling 32° above the horizontal at a speed of 24 m/s. What is the horizontal component of its speed

A. 12.7 m/s
B. 13.0 m/s
C. 29.2 m/s
D. 20.4 m/s

Answer 1

Since the ball is travelling 32 degrees above the horizontal, the value of Θ is 32

In the figure, v vector is the vertical component whereas h vector is the horizontal component

Using trigonometry:

CosΘ = h /24

Cos 32 = h/ 24

0.85 = h / 24

h = 24*0.85

h = 20.4 m/s