Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Chapter 4, Problem 9EAP
A particle moving in the xy- plane has velocity
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Initially, a bicycle is at the position 7 = (130 m)i + (210 m)j. After 120 s, the position of the particle is 7 = (110 m)i + (240 m)j . What is the average velocity vector of the bicycle in that time
||
tinterval?
O Tav = (0.17 m/s)i + (-0.25 m/s)j
O Jay = (0.25 m/s)i + (-0.17 m/s)
O Tay = (-0.25 m/s)î + (0.17 m/s)
O Jay = (-0.17 m/s)i + (0.25 m/s)j
The velocity of a particle is V and is constant. It moves counterclockwise on a circle with center "O" and radius R.
Draw the circle. When the particle is in the vector R position, draw vector R, vector V, vector A, and vector da/dt(time derivative of acceleration).
Initially, a bicycle is at the position r= (130 mji + (210 m)j - After 120 s. the postion of the particle is = (110 mmi + (240 m)j What is the average velocity vector of the bicycle in ihat
time tinterval?
O Tav = (-0.17 m/s)i + (0.25 m/s);
O Tay = (0.25 m/s)i+(-0.17 m/s)
O Tay = (0.17 m/s)î + (-0.25 m/s)j
O Tay = (-0.25 m/s)i+ (0.17 m/s)ĵ
Chapter 4 Solutions
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
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