A block of mass 4kg is kept on a rough horizontal surface as shown in the figure.A horizontal force of 19.4N is just able to slide the block (a) Find the coefficient of static friction.(b) If a force of 16N acts then what is the frictional force acting on the block?
![1015575_fc21bb6686b3461a82f6d5c419dc83d5.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1015575_fc21bb6686b3461a82f6d5c419dc83d5.png)