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2. *C4-30: The acceleration of a particle is a constant. At t=0 the velocity of the particle is (10.0 i + 20.0 j) m/s. At t = 4.00 s the velocity is 10.0 m/s j. a) What is the particle's acceleration as a magnitude and direction? b) How does the velocity vary with time written in unit vector notation? c) What is the magnitude and direction of the object's velocity at t = 3.00 s?

2. *C4-30: The acceleration of a particle is a constant. At t=0 the velocity of the particle is (10.0 i + 20.0 j) m/s. At t = 4.00 s the velocity is 10.0 m/s j. a) What is the particle's acceleration as a magnitude and direction? b) How does the velocity vary with time written in unit vector notation? c) What is the magnitude and direction of the object's velocity at t = 3.00 s?

College Physics
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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2. *C4-30: The acceleration of a particle is a constant. At t=0 the velocity of the particle is (10.0 i + 20.0 j) m/s. At t = 4.00 s the velocity is 10.0 m/s j. a) What is the particle's acceleration as a magnitude and direction? b) How does the velocity vary with time written in unit vector notation? c) What is the magnitude and direction of the object's velocity at t = 3.00 s? d) What is the magnitude and direction of the object's velocity at t = 1.00 minute? What is the magnitude and direction of the object's velocity at t = 3.00 minutes? Answers: (a) 3.535 m/s² @ 225°, (b) (-2.50t + 10.0) i m/s + (-2.50t+ 20.0) j m/s (c) 12.7 m/s @ 78.7°, (d) 191 m/s @ 133°, (e) 615 m/s @ 224°
Transcribed Image Text:2. *C4-30: The acceleration of a particle is a constant. At t=0 the velocity of the particle is (10.0 i + 20.0 j) m/s. At t = 4.00 s the velocity is 10.0 m/s j. a) What is the particle's acceleration as a magnitude and direction? b) How does the velocity vary with time written in unit vector notation? c) What is the magnitude and direction of the object's velocity at t = 3.00 s? d) What is the magnitude and direction of the object's velocity at t = 1.00 minute? What is the magnitude and direction of the object's velocity at t = 3.00 minutes? Answers: (a) 3.535 m/s² @ 225°, (b) (-2.50t + 10.0) i m/s + (-2.50t+ 20.0) j m/s (c) 12.7 m/s @ 78.7°, (d) 191 m/s @ 133°, (e) 615 m/s @ 224°
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