Question

26.If f be the force of friction and N the normal reaction then choose the wrong option. (a) f cos theta=N*sin theta(b) f sin theta+n cos theta=mg (c) f-mg sin theta=ma sin theta (d) n-mg cos theta=ma cos theta​

Answer 1

Answer:

A) fcos(thetta)= nsin(thetta) is wrong

Step-by-step explanation:

frictional force acting opposite to thetta,so it is fsin thetta.