A body is in equilibrium under the action of three coplanar forces `P,Q and R` as shown in figure. Select the correct statement.

For a body to be in equilibrium under the combined action of several forces

For a body to be in equilibrium under the combined action of several forces

Select the correct statement regarding R.Q. ?

Select the correct statement regarding R.Q. ?

A block of mass m is at rest under the action of force F against a wall as shown in figure. Which of the following statement is incorrect?

A block of mass m is at rest under the action of force F against a wall as shown in figure. Which of the following statement is incorrect?