Step 1:

Total wind force on the building is , where  is the force exerted by the buliding at a height .

The Height of the building is 240 m. \ \

Let us consider number of subintervals : .

Trapezoidal Rule:

Let be continuous on . The Trapezoidal Rule for approximating is given by

,

where and  .

.

Find using trapeziodal rule. \ \

\ \

Observe the table and substitute the corresponding values.

Using Trapezoidal Rule, .

Solution :

.