An airplane has an airspeed of 528 mi/hr bearing 25° west of north. Which of the following vectors best describes the path of the airplane? O v= 528 cos(155°)i + 528 sin(1550); O v = 25 cos(528°)i + 25 sin(528°); O None of these O v = 528 cos(25°)i + 528 sin(259); O v = 528 cos(115°)i + 528 sin(115)

Respuesta :

ayune

An airplane has an airspeed of 528 mi/hr bearing 25⁰ west of north. The path can be described as a vector v =  (528 cos 115⁰) i + (528 sin 115⁰) j

Suppose we have a vector  with magnitude v and angle α with the positive x-axis, then the vector can be expressed as its component as:

vx = v cos α

vy = v sin α

or

v = vx i + vy j

v =  (v cos α) i +  (v sin α) j

In the given problem, the magnitude is 528, while the angle is:

α = 25⁰ west of north = 25⁰ + 90⁰ = 115⁰

Hence,

vx = 528 cos 115⁰

vy = 528 sin 115⁰

v =  (528 cos 115⁰) i + (528 sin 115⁰) j

Learn more about vector here:

https://brainly.com/question/25705666

#SPJ4

ACCESS MORE
ACCESS MORE
ACCESS MORE
ACCESS MORE