pairs: (a) (1, 2, 3) x ( 7, - 8, 9 ) (b) ( – 2, 5, 7) × ( 4, - 10, - 14 ) (c) ( 0.8, 0.6, 0.0 ) × ( 0.0, 0.5, – 0.3 ) (d) (- 55, - 21, - 72) × ( – 21, – 55, - 72 ) 2. Starting at t = 0, an object at rest is subjected to a force f(t) b=D3, c= 7N, and d = 13N. Find the displacement of the object from its starting location at time = at3 + bt2 +ct +d where a = 1; %3D t = 4s. 3. Consider two blocks that are attached by a string. Block 1 lays on plane inclined by an angle 0 with the horizontal. Block 2 hangs freely off the edge of the inclined plane. For the situation where M2 > M1, find the static coefficient of friction needed to keep the system from moving away from its starting position. My 4. Consider two blocks at rest on a flat plane. Block 1 lays on the plane, while Block 2 lays atop Block 1. Given a static coefficient of friction (µ), with what force must you push Block one such that Block 2, just begins to slide off of Block 1? Mz M, 1LL

Question

I need help understanding the problem and solution

pairs:
(a) (1, 2, 3) x ( 7, - 8, 9 )
(b) ( – 2, 5, 7) × ( 4, - 10, -
14 )
(c) ( 0.8, 0.6, 0.0 ) × ( 0.0, 0.5, – 0.3 )
(d) (- 55, - 21, - 72) × ( – 21, – 55, - 72 )
2. Starting at t = 0, an object at rest is subjected to a force f(t)
b=D3, c= 7N, and d = 13N. Find the displacement of the object from its starting location at time
= at3 + bt2 +ct +d where a = 1;
%3D
t = 4s.
3. Consider two blocks that are attached by a string. Block 1 lays on plane inclined by an angle 0 with the
horizontal. Block 2 hangs freely off the edge of the inclined plane. For the situation where M2 > M1,
find the static coefficient of friction needed to keep the system from moving away from its starting
position.
My
4. Consider two blocks at rest on a flat plane. Block 1 lays on the plane, while Block 2 lays atop Block 1.
Given a static coefficient of friction (µ), with what force must you push Block one such that Block 2,
just begins to slide off of Block 1?
Mz
M,
1LL
Expand
Transcribed Image Text

pairs: (a) (1, 2, 3) x ( 7, - 8, 9 ) (b) ( – 2, 5, 7) × ( 4, - 10, - 14 ) (c) ( 0.8, 0.6, 0.0 ) × ( 0.0, 0.5, – 0.3 ) (d) (- 55, - 21, - 72) × ( – 21, – 55, - 72 ) 2. Starting at t = 0, an object at rest is subjected to a force f(t) b=D3, c= 7N, and d = 13N. Find the displacement of the object from its starting location at time = at3 + bt2 +ct +d where a = 1; %3D t = 4s. 3. Consider two blocks that are attached by a string. Block 1 lays on plane inclined by an angle 0 with the horizontal. Block 2 hangs freely off the edge of the inclined plane. For the situation where M2 > M1, find the static coefficient of friction needed to keep the system from moving away from its starting position. My 4. Consider two blocks at rest on a flat plane. Block 1 lays on the plane, while Block 2 lays atop Block 1. Given a static coefficient of friction (µ), with what force must you push Block one such that Block 2, just begins to slide off of Block 1? Mz M, 1LL

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