An insect with eight legs stands on water.  The end of each leg has a spherical shape of  radius 1 mm.  Surface of water makes an angle 60° with the vertical at its contact with the leg and surface tension of water at the given temperature is 72 dyne/cm, then  (take g = 10 $m/s^2$ )

Magnitude of net force due to surface tension acting on any leg of the insect will be nearly  $1.13\times {10}^{-4}N$

Magnitude of net force due to surface tension acting on any leg of the insect will be nearly $4.5\times {10}^{-4}N$   

Mass of the insect, assuming that each leg bears an equal weight is nearly 90.4 mg                           (take g = 10  $m/s^2$)

Mass of the insect, assuming that each leg bears an equal weight is nearly 268 mg