force = mass x acceleration
Plug in (window mass - counterweight mass) then multiply by the given acceleration in the problem and you will get your force. Force is (kg x m/s^2)
A 3.0 kg counterweight is connected to a 4.5 kg window that freely slides vertically in its frame. How much force must you exert to start the window opening with an acceleration of 0.25 m/s^2?
It seemed like an easy problem to me but I've gone about it so many ways and still can't get it right! Please help.
Sorry I couldn't solve it for you but this looks like a physics question? Might try Physics help forum?
Since a Newton is if you look at the equation you have 17(kg*m)/(s^2) = xkg * .25 m/s^2 which means there is a mass of 68 kg? Idk.. sorry have you double checked the given numbers to make sure you wrote them all down right, as well as the answer? The only other thing i can think of.