Question

Average mass of raindrop is 3 into 10 to the power minus 5 kg and the average time a velocity is 92%

Answer 1

Kinetic energy -

k= \frac{1}{2}mv^{2}

- wherein

m\rightarrow mass

v\rightarrow velocity  

Kinetic Energy is always positive.

 

Total volume of water in 1 m^2  area = 1 m^2 \times 100 cm = 1 m^3

Total mass in 1 m^2 area = \rho v = 10 ^3 \times 1 Kg = 10 ^3 Kg

Kinetic energy = 1/2 \times 10 ^3 \times 9 ^2 = 4.05 \times 10 ^ 4 J