8 N force is applied to a 4.7 kg block at a downward angle = 52 as the block moves rightward through 1.1 m across a frictionless floor.

 a 1.8 N force is applied to a 4.7 kg block at a downward angle θ = 52° as the block moves rightward through 1.1 m across a frictionless floor. Find the speed vf of the block at the end of that distance if the block’s initial velocity is (a) 0 and (b) 1.1 m/s to the right. (c) The situation in Figure (b) is similar in that the block is initially moving at 1.1 m/s to the right, but now the 1.8 N force is directed downward to the left. Find the speed vf of the block at the end of the 1.1 m distance.