sec. 4-3 Average Velocity and Instantaneous Velocity 5 SSM A train at a constant 60.0 km/h moves east for 40.0 min, then in a direction 50.0° east of due north for 20.0 min, and then west for 50.0 min. What are the (a) magnitude and (b) angle of its average velocity during this trip?

sec. 4-3 Average Velocity and Instantaneous Velocity 5 SSM A train at a constant 60.0 km/h moves east for 40.0 min, then in a direction 50.0° east of due north for 20.0 min, and then west for 50.0 min. What are the (a) magnitude and (b) angle of its average velocity during this trip?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section3.3: Projectile Motion

Problem 3.2QQ: (i) As a projectile thrown upward moves in its parabolic path (such as in Fig. 3.8), at what point...

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Concept explainers

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.

Question

sec. 4-3 Average Velocity and Instantaneous Velocity
5 SSM A train at a constant 60.0 km/h moves east for 40.0 min,
then in a direction 50.0° east of due north for 20.0 min, and then
west for 50.0 min. What are the (a) magnitude and (b) angle of its
average velocity during this trip?

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