Question
A 500g block is shot up a 25degree incline with an initial speed of 200cm/s. Determine the distance, d, that it will go up the incline if the coefficient of kinetic friction between it and the incline is 0.150? Use Entergy considerations to solve the problem.
Answers
Elena
KE=PE+W(fr)
mv²/2 = mgh +µmgcosα =
= mgdsinα +µmgcosα,
d= {v²/2 - µ gcosα}/gsinα
mv²/2 = mgh +µmgcosα =
= mgdsinα +µmgcosα,
d= {v²/2 - µ gcosα}/gsinα