What is the force?
How much force (N) are given to A, so system moved to the left with acceleration 3 m/s^2 ?
Please first obtain a general equation, then replaced one decimal
This problem is not original, the original problem has a bug The original problem is ---> Original Problem
The answer is 404.8.
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1 solution
F o r A ∑ F y = F n a − M a g = M a a a y a a y = 0 ⟹ ∑ F y = F n a − M a g = 0 F n a = M a g ∑ F x = F − T − F f = M a a F − T − F f = M a a T = F − M a a − F f F o r B ∑ F x = T − M b g = M b a T = M b ( g + a ) F − M a a − F f = M b ( g + a ) F f = μ F n a = μ M a g F − M a a − μ M a g = M b ( g + a ) F = M a ( a + μ g ) + M b ( g + a ) F = 4 0 4 . 8 N e w t o n s