Pls explain me this question very much in Detail It's very difficult to understand - Science - Gravitation

Question

Pls explain me this question very much in Detail It's very
difficult to understand

Abhijeet Kumar · Accepted Answer

Dear Student,
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5ed51a0ad1ba4%20jpg">
Regards

Pls explain me this question very much in Detail.... It's very difficult to understand