8. Ball Rolling Up A HillFriction Direction. A ball is rolling (without slipping) up a ramp, slowing down. Three students make the following claims about this situation: (Source: CJ Hieggelke, D P Maloney, and S E Kanim. nTIPERS:. Pearson. 2012.) Arlen: \"Since the ball is rolling there is no friction in this case. The only forces / acting on the hall are the normal force and gravity. The reason the ball slows down is that there is a component of the weight acting down the . ramp.\" Bias: \"Just because the ball is rolling doesn't mean there is no friction. There is a static force of friction that opposes the motion of the ball. The weight of the ball and the friction force both act to slow the hall down.\" Conley: \"The friction force actually points up the ramp in this case. For the ball to keep rolling without slipping, the angular velocity of the ball must decrease as the speed decreases. If we think about the center of the ball as a pivot point, the only force that can produce a torque is friction, and it has to create a counterclockwise torque.\" Which, if any, of these students do you agree with? Arlen Blas Conley None Explain