/33 Assignment 10 Unit C Module 1, Lesson 1: Understanding Circular Motion Lesson 1 of this assignment is worth 13 marks. The value of each question is noted in the left margin in parentheses. 1. Use the information below to answer parts ag. A ball is attached to a string and swung in a horizontal circle at a constant speed. Assume air resistance is negligible. a) Draw a free body diagram of the forcels) acting on the ball in the horizontal plane. Also include in your diagram any non-zero velocity and/or acceleration vector(s) ofthe ball. Label your coordinate system as the following: 0 Positive is towards the centre ofthe circle 0 Negative is away from the centre of the circle b) Circle A, B, C, or D below. The force(s) on the ball causing the circular motion changes A) only the direction ofthe ball. B) only the speed ofthe ball. C) both the direction and speed of the ball. D) neither the direction nor the speed of the ball