Plz solve and explain step by step with proper formula - Science - Gravitation

Question

Plz solve and explain step by step with proper formula

Rishav Kumar · Accepted Answer

Dear student,
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5f65c1ab388a0%20jpg"
style="width: 1022px; height: 504px;">regards

Plz solve and explain step by step with proper formula.