Question

A small satellite is revolving near earth’s surface. Its orbital velocity will be nearly = ……….. kms^–1. 

(A) 8 

(B) 4 

(C) 6 

(D) 11.2

Answer 1

Correct option: (A) 8

Explanation:

V = orbital velocity = [(Escape velocity) / √2]

V = (V_e / √2)

= [(11.2) / (1.41)]

V = 8 km/s