is the angle of the incline when a block of mass just starts slipping down. The distance covered by the block if thrown up the incline with an initial speed is
Get Answer
Here is the angle of repose.
The retardation of the block
A disc with a flat small bottom beaker placed on it at a distance from its center is revolving about an axis passing through the center and perpendicular to its plane with an angular velocity . The coefficient of static friction between the bottom of the beaker and the surface of the disc is . The breaker will revolve with the disc if :
Let is the distance travelled, then by third equation of motion
or or (b) For beaker to move with disc
So, will be maximum, when
Therefore,
So,
An insect is at the bottom of a hemispherical ditch of radius . It crawls up the ditch but starts slipping after it is at height from the bottom. If the coefficient of friction between the ground and the insect is 0.75 , then is :
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