2. A block of mass m rests on a plane inclined at 0 with the horizontal. The block is attached to a spring of constant k as shown in Figure-2. The coefficients of static and kinetic friction between the block and plane are µs and µx respectively. Very slowly, the spring is pulled upward along the plane until the block starts to move. (a) Obtain an expression for the extension d of the spring the instant the block moves. (b) Determine the value of µg such that the block comes to rest just as the spring is in its unstressed condition, that is, neither extended nor compressed. m
2. A block of mass m rests on a plane inclined at 0 with the horizontal. The block is attached to a spring of constant k as shown in Figure-2. The coefficients of static and kinetic friction between the block and plane are µs and µx respectively. Very slowly, the spring is pulled upward along the plane until the block starts to move. (a) Obtain an expression for the extension d of the spring the instant the block moves. (b) Determine the value of µg such that the block comes to rest just as the spring is in its unstressed condition, that is, neither extended nor compressed. m
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
Section5.7: Some Specific Forces
Problem 5.8CE: Imagine weighing the same bunch of bananas with two different spring scales like the one in Figure...
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