If for an inclined plane coefficient of static friction is ${\mu _s} = \frac{3}{4}$, then for the inclined plane angle of repose will be ........ $^o$
$30$
$37$
$45$
$53$
$\theta = {\tan ^{ – 1}}\,\mu $
A block of mass $M$ is held against a rough vertical well by pressing it with a finger. If the coefficient of friction between the block and the wall is $\mu $ and acceleration due to gravity is $g$, calculate the minimum force required to be applied by the finger to hold the block against the wall.
If a ladder weighing $250\,N$ is placed against a smooth vertical wall having coefficient of friction between it and floor is $0.3$, then what is the maximum force of friction available at the point of contact between the ladder and the floor …….. $N$
Meena applies the front brakes, while riding on her bicycle along a flat road. The force that slows her bicycle is provided by the
Which one of the following statements is incorrect?
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