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Year 12s: what will be the first way you research your future options? >>

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M3 IAL June2015 Q2(b)

M3 IAL June2015 Q2(b)

Kamisama

QP: https://8a40d6c38bafca75cc407741c0f3e1889c8e66b2.googledrive.com/host/0B1ZiqBksUHNYWENTbktxdlk5dEU/June%202015%20(IAL)%20QP%20-%20M3%20Edexcel.pdf

MS: https://8a40d6c38bafca75cc407741c0f3e1889c8e66b2.googledrive.com/host/0B1ZiqBksUHNYWENTbktxdlk5dEU/June%202015%20(IAL)%20MS%20-%20M3%20Edexcel.pdf

I am wondering why there is a minus sign even if the force and the motion of spacecraft are in the same direction (both are towards the centre of the Earth).

Many thanks.

Reply 1

beta_tester

its a bit weird to explain but for this type of question the force is always negative

Reply 2

Kamisama

Original post by beta_tester

its a bit weird to explain but for this type of question the force is always negative

you mean the question involving earth and rocket?

Quick Reply

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