A student bas two ramls, both of which are at an angle of 30 degrees. ramp 1 is

Question

A student bas two ramls, both of which are at an angle of 30 degrees. ramp 1 is frictionless and ramp 2 has friction. the student also has two blocks , one for each ramp. she pushes the blockes up the ramps with the same initial velocity. the block on ramp 2 only travels a fraction f =0.625 as far as the block on ramp 1 before coming to a stop (ie d2= 0.625*d1).
Find the cpefficient of sliding friction between the block and ramp 2.
use at least 3 significant figures when entering your answer.

INTERACTIVE EXERCISE FRICTION FRACTION A student bas two ramps, both of which are at an angle of 30 degrees. Ramp 1 is frictionless and ramp 2 has friction. the student also has two blocks , one for each ramp. she pushes the blocks up the ramps with the same initial velocity. the block on ramp 2 only travels a fraction f =0.625 as far as the block on ramp 1 before coming to a stop (ie d2= 0.625*d1). Find the coefficient of sliding friction between the block and ramp 2. use at least 3 significant figures when entering your answer. Mu= A student bas two ramls, both of which are at an angle of 30 degrees. ramp 1 is frictionless and ramp 2 has friction. the student also has two blocks , one for each ramp. she pushes the blockes up the ramps with the same initial velocity. the block on ramp 2 only travels a fraction f =0.625 as far as the block on ramp 1 before coming to a stop (ie d2= 0.625*d1). Find the cpefficient of sliding friction between the block and ramp 2. use at least 3 significant figures when entering your answer.

Explanation / Answer

V^2 = 2 g (sin ?) *d1 = 2 g (sin ? + ? cos ?) *d2

Substituting d2 = 0.64 d1

(sin ?) = (sin ? + ? cos ?) *0.64

1.5625 = (1 + ? / tan ?)

? = 0.5625 *tan 33 = 0.37

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