Question

a body of mass 5 kg is placed on a rough horizontal surface. If coefficient of friction is
$1 \sqrt{3}$
find what pulling force should act on the body at an angle of 30 degree to the horizontal so that body moves.​

Answer 1

N=mgcos30. Now, f=(1/√3)*5*10*√3/2 which on solving we will get the frictional force as 25N. We also know that the force experienced by the block will be F=f+mgsin30

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