A 50 kg block is on a 30 degree incline. The coefficient of friction between the block and the incline 0.05. If it is given an initial velocity of 10 m/s up the incline, how far will it travel until it stops?
n=424N
f=424*0.05=21.2N
wx=sin40*50*9.8=315
a=F/m= （315-21.2）/50=5.9m/s2
t=10/5.9=1.6s
distance=1.6*10=16m