![]() (11.2m/s, 26.6°)Ī motorboat is travelling at 4.00m/s east encounters a current at 3.00 m/s north. Determine the boat’s velocity with respect to an observer at shore. ![]() The river has a uniform velocity of 5.00 m/s due east. What is the velocity of the baseball in respect to the Earth?Ī boat heading north crosses a wide river with a velocity of m/s relative to the water. ![]() He throws a baseball in the opposite direction of the trains motion with a velocity of 15.0 m/s. What is the velocity of the fast car as perceived by the slower car? vfs = vfe + ves (the subscript that ended the first variable will start the second on the right hand side of the equation) vfs = vfe + (-vse) If you flip the subscript, make the term negative vfs = 90.0km/h + (-80.0km/h) = 10.0 km/hĩ Conceptual Question A man is standing on a train that is travelling with a velocity of 15.0 m/s. For example, if we are looking at the motion of a car compared to the Earth: vce: velocity of the car relative to the Earth vec: velocity of the Earth relative to the carĨ Example 1 A car travelling at 80.0 km/h is passed by a car travelling at 90.0 km/h. Subscripts (little letters after a big letter) are used to describe what frame of reference is being used. A plane being flown into the wind or with a wind behind it.ĥ Relative Motion Long distance commercial passenger planes normally fly at a speed of km/h (via wikipedia: Cruise(aeronautics)). A canoe being rowed across a flowing river. One car passing another car on the highway. But seriously, Relative motion is the calculation of an object with regard to some other moving object. Relative motion is the motion of an aunt, uncle, cousin, or some other family member, in respect to the current location of their nearest family member. Presentation on theme: "Chapter 3-4: Relative Motion"- Presentation transcript:
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