Question:
How to calculate the speed of a rain drop if altitude is 1km
Answer:
Here, height (h) = 1km = 1000 m, g = 10m/s2
The velocity of the rain drop
v = √2gh
= √2 x 10 x 1000
= 100√2 m/s
= 100√2 × (60x60)/1000 km/h
= 360√2 Km/h
= 510 Km/h
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