The average mass of rain drops is 3.0x10-5 kg and their average terminal velocity is 9 m/s. Calculate the energy transferred by rain to each square metre of the surface at a place which receives 100 cm of rain in a year.
3.5 x 105 J
4.05 x 104 J
3.0 x 105 J
9.0 x 104 J
As we have learned
Kinetic energy -
- wherein
Kinetic Energy is always positive.
Total volume of water in 1 area =
Total mass in 1 area =
Kinetic energy =
Option 1)
3.5 x 105 J
Option 2)
4.05 x 104 J
Option 3)
3.0 x 105 J
Option 4)
9.0 x 104 J
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