Question

A force of 3kg wt is just sufficient to pull a block of 5 kg wt over a flat surface. Find the coefficient of friction and angle of friction

Answer 1

Answer:

Explanation:

Hope it will help you

Answer 2

The coefficient of friction and angle of friction are 0.6 and 31 degree respectively.

Explanation:

The coefficient of friction  is given as

$\mu=\frac{F}{N}$

Here, F is the frcitional force and N is the normal reaction (thrust).

The normal thrust is due to the weight of the block itself.

Given F = 3kgf (limiting static friction) and N = 5kgf.

substitute the given values, we get

$\mu=\frac{3kgf}{5kgf}$

  = 0.6.

The angle of friction is given as

$tan\theta=\mu$

so,

$\theta=tan^-^1(0.6)$

$\theta=30.96^0=31^0$

Thus, the coefficient of friction and angle of friction are 0.6 and 31 degree respectively.

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