Question

A 2.60 kg block is initially at rest on a horizontal surface. A horizontal force ModifyingAbove Upper F With right-arrow of magnitude 6.59 N and a vertical force ModifyingAbove Upper P With right-arrow are then applied to the block (see the figure). The coefficients of friction for the block and surface are ?s = 0.4 and ?k = 0.25. Determine the magnitude of the frictional force acting on the block if the magnitude of ModifyingAbove Upper P With right-arrow is (a)8.00 N and (b)11.0 N. (The upward pull is insufficient to move the block vertically.)

Answer #1

A 6.53-kg block initially at rest is pulled to the right along a
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A 6.0-kg block initially at rest is pulled to the right along a
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A 16.3 kg block is dragged over a rough, horizontal surface by a
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Block 1 (5 kg) is located on the surface of a table. A hand
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In the figure, a slab of mass m1 = 40 kg rests on a frictionless
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A 4.0-kg block initially at rest is pulled to the right along a
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Find the speed of the block after it has moved 3.0 m if the
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_____.
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b. 3.5 m/s
c. 2.8 m/s
d. 5.3 m/s
Suppose the force is applied at an angle. At what angle should
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A 4.82 kg block located on a horizontal frictionless floor is
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As shown in Figure 1, a block (mass: 2.4 kg) is initially at
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