A 3.00kg block starts from rest at the top of a 32.5° incline and slides 2.00 m

Question

A 3.00kg block starts from rest at the top of a 32.5° incline and slides 2.00 m down theincline in 1.65 s. (a)Find the acceleration of the block.
m/s2

(b) Find the coefficient of kinetic friction between the block andthe incline.


(c) Find the frictional force acting on the block.
N

(d) Find the speed of the block after it has slid 2.00 m.
m/s (a)Find the acceleration of the block.
m/s2

(b) Find the coefficient of kinetic friction between the block andthe incline.


(c) Find the frictional force acting on the block.
N

(d) Find the speed of the block after it has slid 2.00 m.
m/s

Explanation / Answer

Mass m = 3 kg Initial speed u = 0 m / s distance S = 2 m Angle = 32.5 o time t = 1.65 s from the relation S = ut + ( 1/ 2) a t2 from this accleration a = 2 S / t 2 substitue values weget    a  value ( b ) we know a = g sin - g cos from this wefind coefficient of kinetic friction betweenthe block and the incline value (c).the frictional force acting on the block = mg cos ( d ) Let the speed of the block after it has slid 2.00 mis v then from the relation v 2 - u 2 =2aS ' where S ' = 2 meters substitue values weget answer substitue values weget    a  value ( b ) we know a = g sin - g cos from this wefind coefficient of kinetic friction betweenthe block and the incline value (c).the frictional force acting on the block = mg cos ( d ) Let the speed of the block after it has slid 2.00 mis v then from the relation v 2 - u 2 =2aS ' where S ' = 2 meters substitue values weget answer

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