Can we create a limit: -90 < ##\theta## < 90. Angels not in this range would imply a negative applied force and then positive friction(if right is still positive) so you would have to change the equation.
Let ##μ_k## = 0.5
##F_a## = 10 Newtons
##\theta## is the angel of the Applied force.
How will the acceleration of the block change if the angle of the applied force is increase by ##5^o##? Write Increase, Decrease or Stay the same.
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