QUESTION 1 a) Explain briefly the meaning of distance and displacement. (2 marks) b) A soccer ball is kicked with an initial speed of 10.2 ms" in a direction 25.0* above the horizontal as shown in Figure 1. v 10.2 ms" 25.0 Figure 1 [) Determine the horizontal and vertical components of the initial velocity of the ball. Vy - 9.24 m/5 My :4. 31 my (4 marks) ") Calculate the magnitude and direction of the soccer ball's velocity 0.5 s after being kicked. -0 .6 mir / 3.720 8 of E (8 marks) ill) Is the ball at its highest point before or after 0.5 s? Give reasons for your answer. (2 marks) QUESTION 2 a) State two factors that affect frictional force. (2 marks) b) A 12 kg block placed on an inclined plane with an angle of 25" to the horizontal as shown in Figure 2 slides down the inclined plane. The coefficient of kinetic friction between the block and the inclined plane is 0.3. 12 kg Figure 2 1) Draw a free body diagram and label all the forces acting on the block. (3 marks) ii) Calculate the force of kinetic friction, & acting on the block. 32 N (4 marks) iii) Find the acceleration of the block as it slides down the plane. (4 marks) c) A girl rides an elevator moving upwards with constant speed. Identify two forces acting on her body. What is the net force acting on her body?