A valve operating in a vertical direction is opened by a cam and closed by a spring and when fully open the valve is in its lowest position. The mass of the valve is 4 kg and its travel is 12.5 mm and the constant frictional resistance to the motion of the valve is 10N. The stiffness of the spring is 9.6 N mm and the initial compression when the valve is closed is 35 mm. Determine 1. the time taken to close the valve from its fully open position, and 2. the velocity of the valve at the moment of impact. (Ans. 0.0161 s 14755 ms)
A valve operating in a vertical direction is opened by a cam and closed by a spring and when fully open the valve is in its lowest position. The mass of the valve is 4 kg and its travel is 12.5 mm and the constant frictional resistance to the motion of the valve is 10N. The stiffness of the spring is 9.6 N mm and the initial compression when the valve is closed is 35 mm. Determine 1. the time taken to close the valve from its fully open position, and 2. the velocity of the valve at the moment of impact. (Ans. 0.0161 s 14755 ms)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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