So make sketch ,
on the y-axis mark off 300
From there draw a 45° angle line ( NW) and make it 40 units
Joint the endpoint to the origin.
That last line is your resultant
I see a cosine law application
Two sides of 300 and 40 with an angle of 135° between them
A plane flies due north at 300km/h but a crosswind blows north-west at 40km/h. Find the resultant velocity of the plane.
Once I have drawn I diagram it is often okay, but it is the initial steps that I struggle with.
1 answer
1 answer