Question

Calculate the resultant force acting on the block.

• A. $\text{50 N}$ towards left
• B. $\text{70 N}$ towards right
• C. $\text{30 N}$ towards right
• D. $\text{30 N}$ towards left

Answer 1

The correct option is C $\text{30 N}$ towards right

Sum of all the forces acting on an object is known as net force.

Forces acting in the same direction adds up and forces acting in the opposite direction gets subtracted. The resultant force will be in the direction of greater force.

Here, $F_1$ $=\text{20 N}$, towards left

and $F_2$ $=\text{50 N}$, towards right

Since both the forces are acting in opposite directions, the net force,

$F_N$ $\text{= 50 N - 20 N = 30 N}$ (Towards right)