A block pressed against the vertical wall is in equilibrium. The minimum coefficient of friction is:-
$0.4$
$0.2$
$0.5$
none of these
A car is moving with uniform velocity on a rough horizontal road. Therefore, according to Newton's first law of motion
A $\vec F\,\, = \,\,\hat i\, + \,4\hat j\,$ acts on block shown. The force of friction acting on the block is :
A rectangular block has a square base measuring $a \times a$ and its height is $h$. It moves on a horizontal surface in a direction perpendicular to one of the edges. The coefficient of friction is $\mu$. It will topple if
For the given figure, if block remains in equilibrium position then find frictional force between block and wall ........ $N$
If mass of $A = 10\,\,kg$, coefficient of static friction $= 0.2$, coefficient of kinetic friction = $0.2$. Then mass of $B$ to start motion is