Problem P. 5023. (April 2018)
P. 5023. The speed of an object sliding down a slope of angle of elevation \(\displaystyle 25^\circ\), is one-quarter of the final speed that the object could have reached if there was no friction. What is the coefficient of kinetic friction?
(4 pont)
Deadline expired on May 10, 2018.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás. \(\displaystyle \mu=\frac{15}{16}\tg 25^\circ=0{,}44.\)
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Problems in Physics of KöMaL, April 2018