In Lab 2 you pushed a cart up an incline plane with friction. If the acceleratio

Question

In Lab 2 you pushed a cart up an incline plane with friction. If the acceleration of the cart on the way up after you release it is 5.5 m/s2 and the acceleration of the cart on the way back down is 3.2 m/s2,
a) what is the angle of the incline?
answer=26 degrees how do you solve it?
b) What is the coefficient of friction between the cart and incline?
answer=.13
how do you solve
c)If the cart travels a distance of 1.2 meters down the incline ( we are only looking at motion back down the incline
answer=2.22z m/s how do you solve

Explanation / Answer

a) 3.2=9.81*(sint-ucost) 5.5=9.81*(sint+ucost) 3.2=9.81*(sint-5.5/9.81+sint) t=26.32 degrees b) 3.2=9.81*(sin26.32-u*cos26.32) u=0.13 c) v=sqrt(2*3.2*1.2) =2.22 m/s

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