Question

3)
13. If a water fall ejects water at the rate of 10m/sec from a height of 1km then the
work done by the gravity per second would be
1) 98 x 106J
2) 98 x 108
3) 98 J
4) 98 x 107J
​

Answer 1

Can you imagine a world without merchants, where we are left to our own devices to acquire goods and services without middlemen? Sounds like a harsh place to be. The sale and trade of goods defines much of the development and history of the world.

Please Please mark me as Brainlist