The acceleration of a particle moving only on a horizontal xy plane is given by a = 5tî + 6tj, where a is in meters per second-squared and t is in seconds. At t = 0, the position vector 7 = (28.0m)i + (47.0m) locates the paticle, which then has the velocity vector = (4.20m/s)i + (2.10m/s)j. At t = 5.90s, what are (a) its position vector in unit-vector notation and (b) the angle between its direction of travel and the positive direction of the x axis? (a) Number i (b) Number i î+ i Units Ĵ Units

The acceleration of a particle moving only on a horizontal xy plane is given by a = 5tî + 6tj, where a is in meters per second-squared and t is in seconds. At t = 0, the position vector 7 = (28.0m)i + (47.0m) locates the paticle, which then has the velocity vector = (4.20m/s)i + (2.10m/s)j. At t = 5.90s, what are (a) its position vector in unit-vector notation and (b) the angle between its direction of travel and the positive direction of the x axis? (a) Number i (b) Number i î+ i Units Ĵ Units

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Current Attempt in Progress
The acceleration of a particle moving only on a horizontal xy plane is given by a = 5tî + 6tj,
where a is in meters per second-squared and t is in seconds. At t = 0, the position vector
(28.0m)i + (47.0m) locates the paticle, which then has the velocity vector
=
✓ = (4.20m/s)i + (2.10m/s)ĵ. At t = 5.90 s, what are (a) its position vector in unit-vector
notation and (b) the angle between its direction of travel and the positive direction of the x axis?
(a) Number i
(b) Number i
î+
i
Units
Ĵ Units

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