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|dw:1339902704337:dw| FIND ACCELERATION?
D: I don't know D: @tomas.A answer it! :D
It's a her...don't be rude.
Rebecca don't he so shy answer her
that's what i said ^
are'nt you members geetting mah problem on right..? do help me pleas.!!
lol um I don't know how to do this. I thought Tomas would be smart enough but I guess not ;D
i forgot all the physics when i finished it
lol someone else has arrived to help you!
it's easy........acc = net pulling force/eff mass
i know that . if you can then explain it.
see the net pullin force = 5g-2g
not it's 7a i guess
i get its answer 7/3 is its right
let's do it the long way.......... 5g-T=5a
how is it?
a = 3/10
wait wat is the wait of B? nd i dont think it's 3/10
its not given.
it's 3g/7........i guess
we hav to use only 1st and 3rd equation?
Use Newton's second law. \[\sum \vec F_i = m \vec a\]\[m_A g - m_Cg = (m_A+m_B+m_C)a\]
Agreed with @yakeyglee, And if there is friction between B and the surface on which it is kept, don't forget to subtract frictional force from the net force in your calculation.