laws of motion plz solve this

all surface are roughf except the horizontal one.prove tha cofficent of friction >tan[(pie-alpha)/4] to keep the system at rest??

4 Answers

23
qwerty ·

pls giv some info about the ratio of masses of the objects, and is the coeff of friction same everywhere?

1
ujjwalkalra kalra ·

yup..cofficent of friction is same...and no info is given about masses..u assume it it will get cncel

23
qwerty ·

now try ?

1
ujjwalkalra kalra ·

thx..gt it

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