Assertion : A block of weight 10 N is pushed against a vertical...

- Normal reaction from the wall equals the horizontal push: ($\mathrm{N = 1 5 ~ N}$), so maximum static friction f_max (=\mu $\mathrm{N}=$0.6 $\times$15=9 $\mathrm{~N}$) (Assertion true). - To remain at rest, friction must balance weight 10 N , but available friction is only 9 N , so the block slides down; the "block will remain stationary" statement is false (Reason false).