I need help with part 2 numbers 1,2,3 on the chart paper. The size of the circles on the circle chart... the biggest circle top to bottom is 3 inches, the middle circle is 2 1/2 inches and the smallest circle is 2 inches. Thank you

Activity 4.1: Circular Motion Preliminary While not as intuitive, circular motion is no less important than linear motion. In this activity we v investigate circular measures that correspond to linear measures in displacement, velocity and acceleration. We will then investigate the laws that govern circular motion. v/r Initial Response (Group) What quantities would you think would be especially useful in describing circular motion? Activity Here you have 3 concentric circles, and 2 angles, one 90 degrees and one 180 degrees. To measure the len the radii use a ruler, to measure the length of the arc take a string, place it carefully on the arc length, mark with a pen at the beginning and at the end of the arc and then measure the length of it with the ruler. Angular velocity (@=40/t) 'art II: As an example let's assume it took two seconds for an object to move along the arc for the angles you 1. Find the linear velocity (v = s/t) and the angular velocity (@=40/t) of this object. 180 3. Generalize your observations. ie: what is the relationship between r, v and w? 90 2. Find the v/r and compare it with angular velocity w. Linear velocity (v=As/t) Part I rad 1. Measure the length of the radii of the 3 circles rad rad 2. Measure the arc length the angle cuts on each circle, labeled S1, $2, and $3 respectively, for both angles. To measure the length of the radius use a ruler, to measure the length of the arc, take a st then measure the length of it with the ruler.. place it carefully on the arc length, mark it with a pen at the beginning and at the end of the arc an rew. =10V =FOV Arc-length-over radius units are called radians. Find the ratio of the arc length cut by the angle to the radius for each circle. What do you notice? Page 1