A particle of mass 25 g moves in an xy-plane such that the position vector is given by: r= 15t î + (20t – 5.0t²), where r is in meters and t is in seconds. (a) What is the velocity vector (as a function of time)? (c) What is the acceleration vector (as a function of time)?

A particle of mass 25 g moves in an xy-plane such that the position vector is given by: r= 15t î + (20t – 5.0t²), where r is in meters and t is in seconds. (a) What is the velocity vector (as a function of time)? (c) What is the acceleration vector (as a function of time)?

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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A particle of mass 25 g moves in an xy-plane such that the position vector is given by:
+ (20t – 5.0t²) Ĵ, where r is in meters and t is in seconds. (a) What is the velocity
vector (as a function of time)? (c) What is the acceleration vector (as a function of time)?
î
r 15t

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