please help

8. A 3.00 kg block starts from rest at the top of 30.0" incline and slides 2.00 m down the incline in 1.50 seconds. Find (a) the acceleration of the block, (b) the coefficient of kinetic friction between the block and the incline, (c) the friction force acting on the block, and (d) the speed of the block after it has slid 2.00 m. Answers (a) 1.78 m/s? (b) 0.367 (c) 9.34 N (d) 2.67 m/s This one is really challenging! Notice how I angled the x and y axes. For part (a) use equation of motion - you know vax , Ax , and tAs so solve for ax For part (b) use EFy = may to find the normal force then use EF. = max to find the coefficient of friction For part (c) use Friction force = (coefficient)(normal force) For part (d) use an equation of motion - you know Vax , ax , and Ax so you can find Vex * may = 0 y max