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A car is driven 125km west and 65km southwest. What is the displacement of the car from the point of origin (magnitude and dire...Asked by Anonymous
A car is driven 30km west and then 80 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
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Answered by
Steve
If you arrive at point denoted by the vector p,
p = -30i + (-80/√2i - 80/√2j)
p = -30i + (-56.57i - 56.57j)
p = -86.57i - 56.57j
|p| = 103.41
tanθ = -56.57/-86.57 = 0.653
θ = 213.16°
p = -30i + (-80/√2i - 80/√2j)
p = -30i + (-56.57i - 56.57j)
p = -86.57i - 56.57j
|p| = 103.41
tanθ = -56.57/-86.57 = 0.653
θ = 213.16°
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