2/59 At time t = 0, the position vector of a particle mov-ing in the x-y plane is r 5i m. By time t= 0.02 s,its position vector has become 5.li + 0.4j m. Deter-mine the magnitude vy of its average velocity duringthis interval and the angle 6 made by the averagevelocity with the positive x-axis.

r1→ = 5 i^ r2→ = 5.1 i^ + 0.4 j^ time , t = 0.02 sec To find = Average velocity

PAt time t = 0, the position vector of a particle mov- ing in the x-y plane is r = 5i m. By time t= 0.02 s, its position vector has become 5.li + 0.4j m. Deter- mine the magnitude vay of its average velocity during this interval and the angle @ made by the average velocity with the positive x-axis.

PAt time t = 0, the position vector of a particle mov- ing in the x-y plane is r = 5i m. By time t= 0.02 s, its position vector has become 5.li + 0.4j m. Deter- mine the magnitude vay of its average velocity during this interval and the angle @ made by the average velocity with the positive x-axis.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 20P: A bird files straight northeast a distance of 95.0 km for 3.0 h. With the x -axis due east and the y...

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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

2/59 At time t = 0, the position vector of a particle mov-
ing in the x-y plane is r 5i m. By time t= 0.02 s,
its position vector has become 5.li + 0.4j m. Deter-
mine the magnitude vy of its average velocity during
this interval and the angle 6 made by the average
velocity with the positive x-axis.

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