Many Happenings

B Block worked through angular kinematics today, building on last night's reading. After we frame displacement in terms of angles (measured in radians!), calculating angular velocity and acceleration follow the same techniques that we used for linear motion. For the kinematics formulas, they are item-for-item substitutions between the linear variables and their angular counterparts. Same formulas, different motion. We'll review this ground on Monday before tacking on tangential speed and tangential acceleration.

C and F Blocks worked on their test corrections in class due to the time constraints for getting grades submitted. Have them ready for Monday and that will be our official start day for rotational motion.

E Block worked on their centripetal force investigation, looking at the relationship between the magnitude of the force, the rotational radius and the rotational speed. The greater the force, the faster the speed had to be to maintain a constant radius and a smaller radius required less speed to be maintained than a large radius, when the forces were equal. We'll get into deeper discussion of centripetal force and acceleration on Tuesday - Monday is set aside to explore the basics of angular kinematics.

Have a good weekend!