Grade 11Mechanics

a body is projected up a 45degree rough incline. if the coefficient of friction is 0.5, then the retardation of the block is

Rishi Manoj

8 Years agoGrade 11

1 Answer

Venkat

8 Years ago

a body is projected up a 45degree rough incline. if the coefficient of friction is 0.5, then the retardation of the block is

Net retarding force = $\\mgsin45+\mu cos45$

Retardation = F/m

$\\retardation = \frac{mgsin45+\mu (mg cos45)}{m} \\ \\retardation =\frac{g}{\sqrt{2}}(1+0.5) \\ \\retardation =\frac{3g}{2\sqrt{2}}$
= (g/√2)*[1+0.5]

= {3/(2√2)}*g

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a body is projected up a 45degree rough incline. if the coefficient of friction is 0.5, then the retardation of the block is

Rishi Manoj

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Venkat

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