Question

A fly was sitting on a block. A man draws a triangle of area $4{cm}^2$, thus enclosing the fly. He then applies a force of 20N and kills it with a flat stick. Calculate the pressure on that area.

• A. 5 kN
• B. 0.5 kN
• C. 50 kN
• D. 500 N

Answer 1

The correct option is C

50 kN

Pressure is force per unit area. So, in order to calculate pressure on that area we require force and measure of the area where pressure is to be calculated. So, P = $\frac{20}{4}\times {10}^4$ = 50 kN