chapter 6: circular motion ⚪️

Question 1

define angular displacement

Answer 1

angle of rotation of a body about an axis in a specific direction from a reference point

Question 2

define angular velocity

Answer 2

rate of change of angular displacement of a body

Question 3

the object moves in a circular path at constant speed. explain why the object is accelerating

Answer 3

direction of motion is changing continuously in a circular path, hence velocity is changing continuously, so object is accelerating since acceleration is rate of change of velocity

Question 4

to just maintain contact, normal reaction force must be ___

Answer 4

N >/= 0