Define pressure. Give its SI unit.
The total force applied per unit area is called pressure.
Mathematically,
Pressure (P) = Force (F) / Area (A)
Its SI unit is pascal (Pa).
Why the bags are provided with broad handles?
As we all know that, P = F/A so, P ∝ 1/A
Usually, the bags are made to carry heavy loads. The handles should be able to handle the pressure exerted by the loads. Otherwise, the handles will break. So, to reduce the exerted pressure, and handle the bag easily, the handles of the bag are made broader to increase its area.