The ball has a mass of 1 kg and is confined to move along the smooth vertical slot due to the rotation of the smooth arm OA. The rod is rotating with a constant angular velocitye = 2 rad/s. Assume the ball contacts only one side of the slot at any instant. Which one of the following is (are ) incorrect answers ? 0.5 m Jon -2 rads Select one or more: There is only one contact force on the ball that is acting perpendicular to the rod. There are two contact forces on the ball: one is acting perpendicular to the wall, and the other is perpendicular to the rod. The path of the ball is given by r = 0.5 sec 0. The acceleration along the 0 increasing direction is a, = tan 6 sec 00 The normal reaction to the ball by the rod is given by the equation N g cos 0 + a, where ag is the acceleration along the e increasing direction.

The ball has a mass of 1 kg and is confined to move along the smooth vertical slot due to the rotation of the smooth arm OA. The rod is rotating with a constant angular velocitye = 2 rad/s. Assume the ball contacts only one side of the slot at any instant. Which one of the following is (are ) incorrect answers ? 0.5 m Jon -2 rads Select one or more: There is only one contact force on the ball that is acting perpendicular to the rod. There are two contact forces on the ball: one is acting perpendicular to the wall, and the other is perpendicular to the rod. The path of the ball is given by r = 0.5 sec 0. The acceleration along the 0 increasing direction is a, = tan 6 sec 00 The normal reaction to the ball by the rod is given by the equation N g cos 0 + a, where ag is the acceleration along the e increasing direction.