Question

An artifical satellite is moving in a circular orbit of radius 420050 km calculate it speed if it takes 24 hr to revolve round the earth

Answer 1

r = 420050

time = 86400sec.

speed = 2×22/7×420050/86400

44/7÷420050/86400

2,640,314.29/86400

30.5

please check your numerical digits