please help, show your steps pleaseee. s: Homework 2 Chapter 1&3 Fall 17 Adaptiv
ID: 1775946 • Letter: P
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please help, show your steps pleaseee.
s: Homework 2 Chapter 1&3 Fall 17 Adaptive Follow Up Google Chrome Secure https://session.masteringphysics.com/myct/itemView?assignmentProblemID-86905482 Fai11 Practice Problem 3.10 previous tem 1ne Practice Problem 3.10 SOLUTION in this example we will look at relative velocity in the context of an aircraft flying in a crosswind. The compass of an airplane indicates that it is headed due north, and the airspeed indicator shows that the plane is moving through the air at 240 km/h. If there is a wind of 100 km/h from west to east, what is the velocity of the aircraft relative to the earth? SET UP (Eigure 1) shows the appropriate vector diagram. We choose subscript P to refer to the plane and subscript A to the moving air. Subscript E refers to the earth The information given is p240 km/h due north /E = 100 km/h due east and we want to find the magnitude and direction of vpE SOLVE We adapt wc vw T Ti c to the notation of this example three relative velocities and their relationship are shown in (Figure 1). From this diagram, we find that UP/B (240 km/h) (100 km/h) 260 km/h 1 100 kmh 23 E of N 240 km/h REFLECT The plane's velocity with respect to the air is straight north, but the air's motion relative to earth gives the plane's velocity with respect to earth a component toward the east Part A Practice Problem If the plane maintains its airspeed of 240 km/h. but the wind decreases, what is the wind speed if the plane's velocity with respect to earth is 16 east of north? kilometers perh PIE north km/h -t Submit My Answers Give Up 725 PM nd, ENG 11/6/20Explanation / Answer
Given,
Vp = 240 km ; Vw = ?
theta = 16 deg
tan(theta) = Vw/Vp
Vw = Vp tan(theta)
Vw = 240 x tan16 = 68.82 km/h
Hence, Vw = 68.82 km/h
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