Original post by Noname60
the question
the question
Whats your question?
Original post by mqb2766
Whats your question?
Question b
Original post by Noname60
Question b
Sure, youve posted the model solution so ... ?
Original post by mqb2766
Sure, youve posted the model solution so ... ?
Yes but I don’t understand why they have used 180-theta, shouldn’t the answer just be 36.9?
Original post by Noname60
Yes but I don’t understand why they have used 180-theta, shouldn’t the answer just be 36.9?
The unit (positive) j vector is the "north" direction so it points up. The acceleration vector 3i-4j points south east (roughly) so the angle between them is > 90. You consider the angle defined when both vectors point away from the angle/intersection
https://www.cuemath.com/geometry/angle-between-vectors/
Original post by mqb2766
The unit (positive) j vector is the "north" direction so it points up. The acceleration vector 3i-4j points south east (roughly) so the angle between them is > 90. You consider the angle defined when both vectors point away from the angle/intersection
https://www.cuemath.com/geometry/angle-between-vectors/
https://www.cuemath.com/geometry/angle-between-vectors/
omg, thank you!!! I should have noticed that j vector was negative
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