Question
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A block of mass

m = 5.5 kg

is pulled up a

θ = 22°

incline as in the figure below with a force of magnitude F = 36 N.

(a) Find the acceleration of the block if the incline is frictionless. (Give the magnitude of the acceleration.)
m/s2

(b) Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.12. (Give the magnitude of the acceleration.)
m/s2
check_circle

Step 1

The below diagram represents the free body diagram of the block .

Step 2 help_outlineImage Transcriptioncloseconsidering the surface is frictionless Write the net force along horizontal direction from the free body diagram F-mgsin 0 ma F -mgsin т (36N)-(5.5kg)(9.8m/s )sin 22° (5.5kg) =2.87 m/s (a)The accleration of the block if the incline is frictionless is 2.87m/s fullscreen

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### Newtons Laws of Motion 