(d) Calculate the magnitude (in m/s?) and direction (in degrees above or below the hor

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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ChapterMA: Math Assessment
Section: Chapter Questions
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A pendulum with a cord of length r = 1.05 m swings in a vertical plane (see figure). When the pendulum is in the two horizontal positions 0 = 90° and 0 = 270°, its speed is 4.95 m/s.
a
(a) Find the magnitude of the radial acceleration (in m/s2) for these positions.
m/s2
(b) Find the magnitude of the tangential acceleration (in m/s?) for these positions.
m/s?
(c)
Draw a vector diagram to determine the direction of the total acceleration for these two positions.
Transcribed Image Text:A pendulum with a cord of length r = 1.05 m swings in a vertical plane (see figure). When the pendulum is in the two horizontal positions 0 = 90° and 0 = 270°, its speed is 4.95 m/s. a (a) Find the magnitude of the radial acceleration (in m/s2) for these positions. m/s2 (b) Find the magnitude of the tangential acceleration (in m/s?) for these positions. m/s? (c) Draw a vector diagram to determine the direction of the total acceleration for these two positions.
at
at
a-
ar
at
ar
à
à
a,
0 = 90°
0 = 270°
e = 90 °
0 = 270°
0 = 90°
e = 270
a,
8 = 90°
e = 270°
(d) Calculate the magnitude (in m/s2) and direction (in degrees above or below the horizontal) of the total acceleration.
magnitude
m/s?
direction
O --Select--- •
the horizontal
Transcribed Image Text:at at a- ar at ar à à a, 0 = 90° 0 = 270° e = 90 ° 0 = 270° 0 = 90° e = 270 a, 8 = 90° e = 270° (d) Calculate the magnitude (in m/s2) and direction (in degrees above or below the horizontal) of the total acceleration. magnitude m/s? direction O --Select--- • the horizontal
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