There are two children on a Merry-go-round. Child A is at a greater distance fro
ID: 1419395 • Letter: T
Question
There are two children on a Merry-go-round. Child A is at a greater distance from the axis of rotation than Child B. Which is true?
a) both children have the same angular speed and acceleration
b) Child B has a smaller angular speed and acceleration than child A
c) Both children have the same tangential speed and acceleration
d) Child B has a greater angular speed and acceleration than child A
I know Child A has a greater linear speed and Angular Speed is the same for both... but what about acceleration? Please clarify! thank you!
Explanation / Answer
here,
distance of children A (da) > distance of children B (db)
Child A has a greater linear speed and Angular Speed is the same for both
the centripital accelration , a = v^2/r = r* w^2
as the children A is farthest from the centre , it has more centripital accelration