Homework 04 Problem 6.4-Enhanced-with Feedback Find the coefficient of kinetic f

Question

Homework 04 Problem 6.4-Enhanced-with Feedback Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 35.0° below the A child goes down a playground slide with an acceleration of 1.14 m/s2.You may want to review (Pages 156-163) horizontal. SubmitP Previous Answers Request Answer XIncorrect; Try Again; 2 attempts remaining You have used an incorrect expression for the force of kinetic friction.Note that the normal force is not equal to the force of gravity if the slide is inclined at an angle below the horizontal. Write Newton's second law in the y direction correctly to find the normal force, and then write Newton's second law in the z direction to solve for the coefficient of kinetic friction

Explanation / Answer

Using 2nd law of motion

ma= mgsinx -umg cos x

a= g (sin x - u cos x)

1.14= 9.8*(sin 35-u cos 35)

u= 0.558

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Comment in case any doubt.. good luck

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