Seeking Physics Vector Exercises - Need Help!

AI Thread Summary
A user is preparing for a physics test focused on drawing force vectors and is seeking additional practice exercises beyond what is available in their textbook. They specifically inquire about online resources for vector drawing exercises. Another participant suggests that the user might be looking for free body diagrams and provides a link to a relevant educational website. The discussion emphasizes the need for accessible practice materials in physics. Overall, the thread highlights the challenge of finding adequate resources for physics vector exercises.
carrera901
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Hello there.

Monday I will have a test for physics about drawing force vectors on objects. The problem is there are not many exercises in the book I can practice with. So does anyone know a site or something where I can find exercises on how to draw the vectors?

I am really sorry if this section is not meant for this kind of questions.:shy:
 
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Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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