Inclined plane: finding the acceleration of an object?

A sleigh of mass 20KG is initially at rest on a rough slope inclined at 20 degrees to the horizontal.





The sleigh is released from rest , and moves down the slope.


After 10seconds it is moving with a velocity of 8m/s.





Find the acceleration of the sleigh.


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Please show how you find your answer.Inclined plane: finding the acceleration of an object?
v=vo+at


8=10a


a=0.8Inclined plane: finding the acceleration of an object?
xf=x0+at+0.5at^2;





vf=v0+at





8m/s=0+a(10)





a=8/10 = 0.8 m/s^2