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needhelp83
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A sailboat tacking against the wind moves as follows:
5.8 km at 45 degrees east of north, and then
4.5 km at 50 degrees west of north.
The entire motion takes 1 h 15 min
What is the total displacement?
What is the average velocity of this section of the trip?
What is the speed, if it is assumed to be constant?
Total Displacement
/\x = 5.8*sin(45) + 4.5*sin(-50)= 6.116 km
/\y = 5.8*cos(45) + 4.5*cos(-50)= 7.389 km
/\d = sqrt(/\x^2 + /\y^2) = 9.592 km = 9592 m
Average Velocity
v= r/t
How do I figure out the rest from this information? Any help would be appreciated.
5.8 km at 45 degrees east of north, and then
4.5 km at 50 degrees west of north.
The entire motion takes 1 h 15 min
What is the total displacement?
What is the average velocity of this section of the trip?
What is the speed, if it is assumed to be constant?
Total Displacement
/\x = 5.8*sin(45) + 4.5*sin(-50)= 6.116 km
/\y = 5.8*cos(45) + 4.5*cos(-50)= 7.389 km
/\d = sqrt(/\x^2 + /\y^2) = 9.592 km = 9592 m
Average Velocity
v= r/t
How do I figure out the rest from this information? Any help would be appreciated.