Question

29. A block of mass 2 kg is pushed against a rough vertical
wall with a force of 40 N, coefficient of static friction
being 0:5. Another horizontal force of 15 N, 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.

Answer 1

Answer:

Explanation:

Net force =202+152−−−−−−−−√−(05)x40

25−20=5N

∴tanθ=2015=43

→m≡tan−1(43)=530

So, the block will move at angle 53 degree with the 15 N force.