Slipping and sliding Please select BEST answer each question has ONLY one (1) an

Question

Slipping and sliding
Please select BEST answer each question has ONLY one (1) answer...
Please remember CHEGG membership only allows 20 questions per month please answer to the best of your knowledge or allow another tutor to answer Problem 2: Slipping and Sliding (20 points total) tues au ntry day, you accidently drop your physics book (mass 2.50g) on the sidewalk that M , 50400025 s tod 2.1:(1o points) If the sidewalk is so iey as to essentially frictionless, what is acccleration as it slides downhill? 2.2: (10 points) If there is friction between the book and the incline. Now the book's acceleration will be different from above case. If the book gains speed at only 0.200 m/s as it slides downhill, what is the magnitude of friction force on book?

Explanation / Answer

2.1 when surface is nearly frictionless.

ma= mg sin x

a= 9.8 sin 10= 1.70 m/s^2

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2.2

ma= mg sin X - f

f= 2.5*10^-3 (9.8* sin 10 - 0.2)

f= 0.00375 N

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