Question

An artificial satellite is moving in a circular orbit of radius
42,250 km. Calculate its linear velocity, if it takes
24 hours to revolve round the earth.(Ans. 3.1 km s-)​

Answer 1

WE KNOW LINEAR SPEED = ANGULAR VELOCITY X RADIUS

ANGULAR VELOCITY = 2$\pi$/T

ANGULAR  VELOCITY=44/7/24

ANGULAR VELOCITY =44/168

LINEAR SPEED =44/168 X