A block of mass 10 kg on a 30° inclined plane is being pushed by a horizontal force F as shown in the figure below. Find: 1) II) iii) the time it takes to move the block up the incline by a distance of 2 m, if the block starts from rest and the surface of the inclined plane is smooth and F = 100 N. [5] the horizontal force needed to move the block 2 m up the incline in a time of 1 s, if the surface is rough with coefficient of kinetic friction of 0.2 between it and the block and the block starts from rest. [8] the time the block will take to reach a speed of 5 ms¹ starting from rest at the top when the force F is removed and the surface is smooth. [7] F=100N 10 kg 30
