1. The problem statement, all variables and given/known data The drawings indicate the motion of a ball (moving from left to right), subject to one or more forces on various surfaces. Each circle represents the position of the ball at succeeding instants of time. The time interval between each circle is one second. http://img239.imageshack.us/img239/87/kinma1rs9.gif [Broken] Which of the following statements are true about the motions depicted in the figures above? (Give ALL correct answers: B, AC, BCD.., or None ) The velocity of the ball in pictures C and F is decreasing The velocity of the ball in pictures B, C and F is constant The acceleration of the ball in pictures B and C is zero The acceleration of the ball in pictures A and F is positive The velocity of the ball in pictures B, C and E is increasing 2. Relevant equations 3. The attempt at a solution 1. False, C looks like its moving faster. 2. False, can't be constant, doesn't look the same at all. 3. False, C is clearly accelerating 4. False, A is negative 5. False, 2 are constant Maybe I'm doing something wrong here? BEcause this isn't right.