Question

So here i go with a question of Friction :

Please see attachment

Answer 1

Here is it

Answer 2

hope this helps you at least to start:
\[\tan \alpha = \mu \]

Answer 3

sorry i didn't understand that clearly .. can u help me more clearly ? @Kryten

Answer 4

are you given friction coeficient?

Answer 5

yes it is u

Answer 6

Coefficient of static friction --> u

Answer 7

and the value is?

Answer 8

it is not given :(

Answer 9

i got the expression for F as :
F = ma + mgsin(alpha) + umgcos(alpha)
so for minimum F, our acceleration a should be minimum, right?

Answer 10

this was the answer given :(
@Vaidehi09 can u show the process please ?

Answer 11

maybe this helps you cause now i really have to go and finish my paper...
http://farside.ph.utexas.edu/teaching/301/lectures/node49.html

Answer 12

k best of luck @Kryten , kg sir any suggestions please ?

Answer 13

this is how my figure came to be :