Question

A satellite of the sun is in circular orbit around the sun, midway between the sun and the earth. Then :

• A. The period of the satellite is nearly 229 days
• B. The period of the satellite is nearly 129 days
• C. The speed of the satellite equal the escape velocity of the earth
• D. The acceleration of the satellite is four times the acceleration of the earth.

Answer 1

Answer: (B)

The period of the satellite is nearly 129 days

Answer 2

T² µ r³

$2 \sqrt { 2 }$; T = $\frac { 365 } { 2 \sqrt { 2 } }$ days Ž 129 days