Question

if the moon revolve around earth in a circle of radius 385000 km in 29 days then it's average speed is approximately equal to​

please answer this question

Answer 1

Answer:

40,000km is the aplroximate speed

Answer 2

Answer:

The centripetal acceleration = Net centripetal force / mass

Net centripetal force =

R

2

GMm

−m(ω)

2

R

ω=

27.3×24×3600

2π

,R=3.8×10

8

,M=5.92×10

2

4

centripetal acceleration =

m

R

2

GMm

−m(ω)

2

R

=

(3.8×10

8

)

2

6.67×10

−11

×5.92×10

2

4

−(

27.3×24×3600

2π

)

2

×3.8×10

8

=2.7×10

−3

m.s

−2