Read “Relative Motion” on pages 91 to 100 of your textbook.
SC 5. A jetliner flying at 725 km/h [W] encounters a headwind of 70 km/h [E]. What will be the velocity of the jet relative to the ground?
SC 5. The velocity of the jet will be (725 km/h – 70 km/h) [W] = 655 km/h [W].
Complete the procedure of “2-3 QuickLab: Table Tennis in the Wind” on page 92 of the textbook.
LAB 3. Answer questions 1, 2, 3, and 4 of “2-3 QuickLab: Table Tennis in the Wind” on page 92 of the textbook.
What happens when the wind blows at an angle to the airplane? This is where the use of components, which you have been practising, becomes a key skill in solving problems. Read “Non-collinear Relative Motion” on pages 93 to 97 of your textbook to see how they are used.
SC 6. An airplane with airspeed of 400 km/h is flying south, but an east wind of 86.0 km/h blows the plane off course.
What was the actual velocity of the plane?
In what direction should the pilot fly to head due south?
SC. 6
Designate south and west as positive directions.
a.
b. The resultant is the ground velocity of the airplane.
Remember to submit the answer to TR 3 to your teacher as part of your Module 2: Lesson 2 Assignment.
TR 3. An aircraft has a cruising speed of 100 m/s. On this particular day, a wind is blowing from the west at 75.0 m/s.
What happens when the motion is on water and the currents are not perpendicular to the direction of travel? Again, components become the key in solving these problems. Read “Relative Motion in the Water” on pages 98 to 100 of your textbook to see how they are used.
Remember to submit the answers to TR 4, TR 5, and TR 6 to your teacher as part of your Module 2: Lesson 2 Assignment.
TR 4. A dog wishes to swim across a slow-moving stream. The dog can swim at 2.0 m/s in calm water. The current velocity is 3.0 m/s. The distance directly across the stream is 50 m.
TR 5. For each of the following vectors, calculate the horizontal and vertical components.
TR 6. A man walked 440 m [50.0°] (polar positive) and then 580 m [185°] (polar positive). The entire trip took 150.0 min.