Asked by Karla
Assume a block on unknown weight rests on an incline of 25 degrees and is initially not moving. What push (P) is required to start moving the block if the coefficient of static friction is 0.7?
Answers
Answered by
Elena
If we want the bloch to move downward along incline:
P=F(fr)-m•g•sinα =μ•m•g•cosα - m•g•sinα = m•g(μ •cosα – sinα)
If we want the block to move downward along incline:
P=F(fr)+m•g•sinα =μ•m•g•cosα + m•g•sinα = m•g(μ •cosα +sinα)
P=F(fr)-m•g•sinα =μ•m•g•cosα - m•g•sinα = m•g(μ •cosα – sinα)
If we want the block to move downward along incline:
P=F(fr)+m•g•sinα =μ•m•g•cosα + m•g•sinα = m•g(μ •cosα +sinα)
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