1wat do u mean by horizontal force llel to the wall??
A block of mass 1kg is pushed against a rough vertical wall with a force of 20N, coefficient of static friction being 0.25. Another horizontal force of 10N is applied on the block in a direction parallel to the wall. Will the block move? If yes, in which direction? If no, find the frictional force exerted by the wall on the block. (g = 10 m/s2)
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9 Answers
1frictional force by the wall is 5N
so the block should move downwards in the direction of of the horizontal force.
at some angle with the horizontal
1i think yes ... ie makin an angle of 45 with -ve xaxis if u 20N is in +y direction and 10N(weight) is in -Z direction
106bhaiyya pls help.. i think the direction will vary... am i rite? and how do we obtain it?
62Minimum force required to move the block = .25x20 = 5N
But the net force is 10√2N
so the block will move...
its direction will be down and to the left... 45degrees to both gravity and the applied force...
magnitude will be?
106okie bhaiyya: sum more doubts
in this one the direction of friction is opposite to the resultant force and its components are equal in magnitude?
Suppose the forces was 20N instead of 10N with mass remaining the same .. then what would the direction of friction be and the acceleration of block?
direction of friction here wud be?
62then the direction wud be at angle tan-12
magnitude wud be 10√5-5