42. A pendulum with a cord of length = 1.00 m swings in a vertical plane (Fig. P4.42). When the pendulum is in the two horizontal positions = 90.0° and 9 = 270°, its speed is 5.00 m/s. Find the magnitude of (a) the radial acceleration and (b) the tangential accel- eration for these positions. (c) Draw vector diagrams to determine the direction of the total acceleration for these two positions. (d) Calculate the magnitude and direction of the total acceleration at these two positions. b To Figure P4.42
42. A pendulum with a cord of length = 1.00 m swings in a vertical plane (Fig. P4.42). When the pendulum is in the two horizontal positions = 90.0° and 9 = 270°, its speed is 5.00 m/s. Find the magnitude of (a) the radial acceleration and (b) the tangential accel- eration for these positions. (c) Draw vector diagrams to determine the direction of the total acceleration for these two positions. (d) Calculate the magnitude and direction of the total acceleration at these two positions. b To Figure P4.42
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Transcribed Image Text:42. A pendulum with a cord of
length = 1.00 m swings in
a vertical plane (Fig. P4.42).
When the pendulum is in the
two horizontal positions =
90.0° and 9 = 270°, its speed is
5.00 m/s. Find the magnitude
of (a) the radial acceleration
and (b) the tangential accel-
eration for these positions.
(c) Draw vector diagrams to
determine the direction of the
total acceleration for these two
positions. (d) Calculate the
magnitude and direction of
the total acceleration at these
two positions.
as
&
Figure P4.42
16.0
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