- #1
naada
- 4
- 0
Homework Statement
A box is given an initial velocity of 5m/s up a smooth 20 incline surface . The distance the box travel before coming to rest is?
Homework Equations
I can't solve it correctly , I can't get the idea of this question
The Attempt at a Solution
x= ?
vi=5
v=0
a=?
F = ma
mg cos ? = a
tan-1 20 = 87.14
180 = 90 + 87.14 + ?
?= 180 -90-87.14
?=2.9
(mg cos 2.9 = ma ) /m
g cos 2.9 = a
a= 28.03
x = 25 /( 28.03 )2
x= 0.45 m
My answer is so wrong !
But i can't figure out how to solve this problem