Question

Justify how the root was removed and how the value of 10 halfed and the answer was obtained.

Answer 1

HERE 10^4 = 10^2*10^2

WHEN APPLIED SQUARE ROOT, ONLY ONE IS OBTAINED . THEREFORE 10^2 IS OBTAINED.

4=2^2

SO SQUARE ROOT OF 4 = 2

SQUARE ROOT OF 20.01= 4.47325385

THEREFORE ,

= 4.47325385/2 * 10^2
= 223.662692 m/s
= 223.662692 * 1/10 km /s
= 22.37 km/s


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