Consider the portion of an excavator shown. At the instant under consideration, the hydraulic cylinder is extending at a rate of 9 in./sec, which is decreasing at the rate of 3 in./sec every second. Simultaneously, the cylinder is rotating about a horizontal axis through O at a constant rate of 15 deg/sec. Determine the velocity v and acceleration a of the clevis attachment at B. 2.8' 4.0' A 440
Consider the portion of an excavator shown. At the instant under consideration, the hydraulic cylinder is extending at a rate of 9 in./sec, which is decreasing at the rate of 3 in./sec every second. Simultaneously, the cylinder is rotating about a horizontal axis through O at a constant rate of 15 deg/sec. Determine the velocity v and acceleration a of the clevis attachment at B. 2.8' 4.0' A 440
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Transcribed Image Text:Determine the indicated terms used in the velocity and acceleration formulas.
B
2.8'
A
4.0'
440
Answers:
r =
i
in.
i
i =
i
in./sec 0 =
i
rad/s
i
in./sec2 Ö =
i
rad/s2
||
Transcribed Image Text:Consider the portion of an excavator shown. At the instant under consideration, the hydraulic cylinder is extending at a rate of 9
in./sec, which is decreasing at the rate of 3 in./sec every second. Simultaneously, the cylinder is rotating about a horizontal axis through
O at a constant rate of 15 deg/sec. Determine the velocity v and acceleration a of the clevis attachment at B.
2.8'
4.0'
A
440
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Follow-up Question
Transcribed Image Text:Determine the r- and 0-components of velocity and acceleration.
2.8'
4.0'.
A
440
Answers:
Vr =
i
in./sec
ve =
i
in./sec
i
in./sec?
i
in./sec2
a, =
ag =
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