SuyiNami
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I've been quite confused with these two questions, I'd be extremely grateful if anyone could answer and explain them to me! Thanks

Ive been quite confused with these two questions Id be extremely grateful if anyone could answer and explain them to me Thanks class=

Respuesta :

F = GMm / r^2  for m :-

cross multiply:-

GMm = Fr^2

now divide both sides by GM:-

m =Fr^2 / GM



For  r :-

Fr^2 = GMm

r^2 = GMm / F

r = sqrt (GMm/F)  Answer



6.  Vt^2 = Vo^2 + 2ad

subtract 2ad from both sides:-

Vt^2 - 2ad = Vo^2

Vo  = sqrt (Vt^2 - 2ad)  answer

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