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1. A person first walked 30.0 km east, and then walked 20.0 km in a direction...

1. A person first walked 30.0 km east, and then walked 20.0 km in a direction that makes an angle of 35.0° north of east.Determine the magnitude of his total displacement.

2.A vector →A has a magnitude of 50.0 m and points in a direction 30.0° above the positive x-axis. A second vector, →B, has a magnitude of 80.0 m and points in a direction 60.0° above the negative x-axis. Using the component method, find the magnitude of the vector →R=A+B, and the magnitude of the vector D→=A−B

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