Question

On a suqare mat foundation of side 5 m, four forces are acting at each corner of magnitude 10 kN, 15 kN, 20 kN and 25 kN, (all downwords) the magnitude of the resultant of these four forces is ​

Answer 1

Given,

Side of the square=5cm

Amount of four forces are 10kN,15kN,20kN,25kN

All are downwards force acting on the square.

To Find,

The resultant force of these four forces.

Solution,

As we know that vector quantity is the quantity of force.

For this we add vectors using vector addition.

We can now just add all of the figures together because they are all in the same direction, i.e. downwards.

As a result, the result of these forces is

10 + 15 + 20 + 25 = 70 N.

As a result, the sum of all the forces produces a force of 70 N.

Hence, the magnitude of the resultant of these four forces is 70N.