method to approach this kind of q (1 Viewer)

[lmao1010]

ive just been using newtons universal law of gravity but dont know if thats the "proper" way to approach this, can someone verify

 

[Run hard@thehsc]

Pretty sure thats how you do it.... and then you equate the two to find the appropriate factor of g

 

[Thundermaster123]

@lmao1010 is it d?

 

[lmao1010]

Pretty sure thats how you do it.... and then you equate the two to find the appropriate factor of g

Kkk thx bro

 

[jimmysmith560]

The answer is indeed (D), consider the following working:



i.e. (D)

I hope this helps!