A particle moves in a circular path of radius R = 2 m. At some instant of time, its total acceleration vector (ä) has magnitude 20 m/s? and makes an angle e = 30° with the radius as shown in the figure below. At that instant, the magnitude (in m/s*) of the particle's tangential acceleration (a,) is: A. 10 В. 2.4 C. 0.5 D. 5.4 E. 12.9 O A O B ос O D O E

A particle moves in a circular path of radius R = 2 m. At some instant of time, its total acceleration vector (ä) has magnitude 20 m/s? and makes an angle e = 30° with the radius as shown in the figure below. At that instant, the magnitude (in m/s*) of the particle's tangential acceleration (a,) is: A. 10 В. 2.4 C. 0.5 D. 5.4 E. 12.9 O A O B ос O D O E

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 6P: At t = 0, a particle moving in the xy plane with constant acceleration has a velocity of...

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Question

None

A particle moves in a circular path of radius R = 2 m. At
some instant of time, its total acceleration vector
(a) has magnitude 20 m/s? and makes an angle
e = 30° with the radius as shown in the figure below.
At that instant, the magnitude (in m/s*) of the particle's
tangential acceleration (a,) is:
A. 10
B. 2.4
C. 0.5
D. 5.4
E. 12.9
O A
O B
O C
O D
O E

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