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NAME _____________________________________________ DATE ____________________________ PERIOD _____________ 8-7 Practice: Vectors Use a ruler and a protractor to draw each vector. Include a scale on each diagram. 1. ⃑ = 12 Newtons of force at 40° to the horizontal Copy the vectors to find each sum or difference. 3. ⃑ – ⃑⃑ 2. ⃑ + ⃑ ⃑⃑⃑⃑⃑⃑ . 4. Write the component form of Chapter 8 46 Glencoe Geometry NAME _____________________________________________ DATE ____________________________ PERIOD _____________ Find the magnitude and direction of each vector. 5. ⃑ = 〈9, –7〉 Find each of the following for ⃑ = 〈–1.5, 4〉, ⃑⃑ = 〈7, 3〉, and ⃑ = 〈1, –2〉. Check your answers graphically. 6. 2⃑ + ⃑⃑ 7. 2⃑ – ⃑⃑ 8. AVIATION A jet begins a flight along a path due north at 300 miles per hour. A wind is blowing due west at 30 miles per hour. a. Find the resultant velocity of the plane. b. Find the resultant direction of the plane. ⃑⃑ = 〈2, −3〉 9. Find the following for the following: ⃑ = 〈−4, −2〉, ⃑ = 〈6, 1〉, ℎ ⃑⃑⃑⃑ ℎ − ⃑⃑⃑⃑⃑⃑⃑ 2 + ⃑⃑⃑⃑⃑ Chapter 8 46 Glencoe Geometry