Q4: 2/145 The slider P can be moved inward by means of the string S, while the slotted arm rotates about point 0. The angular position of the arm is given by e= where ở is in radians and t is in seconds. 0.8t 20 The slider is at r 1.6 m when t = 0 and thereafter is drawn inward at the constant rate of 0.2 m/s. Determine the magnitude and direction (expressed by the angle a relative to the x-axis) of the velocity and acceleration of the slider whent = 4 s. Ans. v = 0.377 m/s at a = 260 a = 0.272 m/s at a = 19.44° %3D Problem 2/145

Q4: 2/145 The slider P can be moved inward by means of the string S, while the slotted arm rotates about point 0. The angular position of the arm is given by e= where ở is in radians and t is in seconds. 0.8t 20 The slider is at r 1.6 m when t = 0 and thereafter is drawn inward at the constant rate of 0.2 m/s. Determine the magnitude and direction (expressed by the angle a relative to the x-axis) of the velocity and acceleration of the slider whent = 4 s. Ans. v = 0.377 m/s at a = 260 a = 0.272 m/s at a = 19.44° %3D Problem 2/145

Elements Of Electromagnetics

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Q4:
2/145 The slider P can be moved inward by means of the
string S, while the slotted arm rotates about point
0. The angular position of the arm is given by e
0.8t -
where ở is in radians and t is in seconds.
20
The slider is at r = 1.6 m when t = 0 and thereafter
is drawn inward at the constant rate of 0.2 m/s.
Determine the magnitude and direction (expressed
by the angle a relative to the x-axis) of the velocity
and acceleration of the slider when t = 4 s.
Ans. v = 0.377 m/s at a 260
a = 0.272 m/s at a = 19.44°
-x
Problem 2/145

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