(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two masses of 40kg and 120 are connected by a light inextensible string

Calculate the net acceleration of the system of masses

magnitude and tension of the string

2. Relevant equations

F=ma

t=mg+ma

t=mg-ma

3. The attempt at a solution

120x9.8 = 1176N

40x9.8 = 392N

1176 - 392 = 784N to the right

784=(40+120) x a

a=4.9

BUT then i used thet=mg+maand put in t = (40x9.8)+(40x4.9)

and the answer then came out to be 588N

where have i gone wrong

one answer saids 784N the other saids 588N.

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# Homework Help: Calculation F=ma

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