Worksheet: Relative Motion

In this worksheet, we will practice defining the positions, displacements, and velocities of objects compared with those of other objects.

Q1:

The points 𝑎 , 𝑏 , 𝑐 , 𝑑 , and 𝑒 are shown in the diagram.

How far north of 𝑎 is 𝑐 ?

How far west of 𝑎 is 𝑏 ?

How far south of 𝑎 is 𝑒 ?

How far east of 𝑎 is 𝑑 ?

How far north of 𝑒 is 𝑐 ?

How far south of 𝑒 is 𝑑 ?

How far east of 𝑑 is 𝑏 ?

How far west of 𝑏 is 𝑐 ?

Q2:

An airplane flying horizontally in a straight line moves parallel to the ground at a speed of 450 m/s. A second airplane flies below, in the opposite horizontal direction, moving parallel to the ground at a speed of 100 m/s. Which of the diagrams (a), (b), (c), and (d) correctly shows how the velocities of the airplanes can be combined to find the speed at which the airplanes move relative to each other?

  • A(b)
  • B(a)
  • C(c)
  • D(d)

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