A 1-kg of wood is pressed against a vertical wall (µs= 0.25) by a force inclined 40º upward with respect to the vertical axis.
Question
A 1-kg of wood is pressed against a vertical wall (µs= 0.25) by a force inclined 40º upward with respect to the vertical axis. Determine the maximum force which can start the motion of the block.
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General Physics
7 years
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Answer ( 1 )
F =
(0.25)(9.8 cos40)+(9.8 sin30) / cos(4) – 0.25(sin30)=
7. 77 N