A force is applied horizontally to a block to move it up a $10\mathrm{.}0$ incline. F$=70\mathrm{.}0$N and M$=7\mathrm{.}50$kg $.$

a$)$ What is the magnitude of the acceleration of the block if the incline is frictionless?

a$=$Correct m$/$s$2$

b$)$ What is the normal force on the block?

FN$=$Correct N

b$)$ What is the magnitude of the acceleration of the block if the coefficient of kinetic friction between the block and the incline is $0\mathrm{.}150$ frictionless?

a$=$Correct m$/$s$2$