- #1
PeachBanana
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Homework Statement
• If we add a third block, leaving the 10 N force the
same, what happens to f3,
the net force on the 3 kg
block?
A. Increase
B. Decrease
C. Stay the Same
D. Not Enough Info.
Homework Equations
F net = m * a
The Attempt at a Solution
Ignore the colors in the attachment. All that matters are the numbers.
The acceleration of the system with only the two blocks is 1.25 m/s^2.
10 N = (3 kg + 5 kg) * a
a = 1.25 m/s^2
The acceleration of the system with the three blocks is now 0.625 m/s^2.
I'm trying to set up an equation to solve for the net force on the 3 kg block.
10 N + Force of block 3 on block 5 - Force of block 5 on block 3 = ...?
IF that's a correct equation.