Block 1, of mass 3.2 kg, is on a frictionless slope that forms an angle 0 = 35 degrees with the horizontal. %3D Block 2, of mass 1.1 kg, is on top of block 3. of mass 2.1 kg, both of which are on a horizontal surface. Blocks 1 and 2 are connected by a massless, inextensible string going over an ideal pulley (massless, frictionless). The kinetic friction coefficient between blocks 2 and 3 is 0.42, while it is 0.18 between block 3 and the horizontal surface. Until told otherwise later in the problem, assume that the whole system is at rest, and use g =9.8 m/s? for this problem Part (d) Still assuming that all blocks are at rest, what is the tension in the string? T = Part (e) What is the minimum value of the coefficient us2 of static friction between blocks 2 and 3 that can keep block 2 from sliding? As,2 Part () What is the minimum value of the coefficient u,a of static friction between block 3 and the surface that can keep block 3 from sliding?
Block 1, of mass 3.2 kg, is on a frictionless slope that forms an angle 0 = 35 degrees with the horizontal. %3D Block 2, of mass 1.1 kg, is on top of block 3. of mass 2.1 kg, both of which are on a horizontal surface. Blocks 1 and 2 are connected by a massless, inextensible string going over an ideal pulley (massless, frictionless). The kinetic friction coefficient between blocks 2 and 3 is 0.42, while it is 0.18 between block 3 and the horizontal surface. Until told otherwise later in the problem, assume that the whole system is at rest, and use g =9.8 m/s? for this problem Part (d) Still assuming that all blocks are at rest, what is the tension in the string? T = Part (e) What is the minimum value of the coefficient us2 of static friction between blocks 2 and 3 that can keep block 2 from sliding? As,2 Part () What is the minimum value of the coefficient u,a of static friction between block 3 and the surface that can keep block 3 from sliding?
College Physics
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:Block 1, of mass 3.2 kg, is on a frictionless slope that
forms an angle 8 = 35 degrees with the horizontal.
Block 2. of mass 1.1 kg, is on top of block 3. of mass
2.1 kg, both of which are on a horizontal surface.
3.
Blocks 1 and 2 are connected by a massless,
inextensible string going over an ideal pulley (massiess,
frictionless).
The kinetic friction coefficient between blocks 2 and 3
is 0.42, while it is 0.18 between block 3 and the
horizontal surface.
Until told otherwise later in the problem, assume that
the whole system is at rest, and use g =9.8 m/s? for
this problem
Part (d) Still assuming that all blocks are at rest, what is the tension in the string?
T =
Part (e) What is the minimum value of the coefficient as2 of static friction between blocks 2 and 3 that can keep block 2 from sliding?
4s,2 =
Part () What is the minimum value of the coefficient e,3 of static friction between block 3 and the surface that can keep block 3 from sliding?
As,2 =
Part (g) Now assume that blocks 1 and 2 are sliding toward the right, but block 3 still remains are rest. What is the acceleration of block 1 (using the axes
shown on the figure)?
Part (h) If block 3 starts sliding as well, what is its acceleration?
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