- #1
Hamza Qayyum
- 3
- 0
I'm trying to model a sphere having force applied at position P in the following diagram:
I know that this applied force will have an x and y component; the y component will propel it upwards, but what I am confused about is the x component of the force. I know that the x component will propel it forwards (linear velocity) and make it spin (angular velocity). I can calculate the rotational force as follows:[tex]F_{rot.}=ma_{tangential}[/tex][tex]F_{rot.}=mr\alpha=\frac{mr\omega}{\Delta t}[/tex]However, what I don't know is the proportion of [itex]F_{app.\,x}[/itex] that contributes to the rotational force and the proportion that contributes to linear force in the x direction. It doesn't make sense if I try to think of both being proportional. That would only work if the sphere were rolling on the floor without slipping, in which case [itex]V_{Center\,of\,mass}=r\omega[/itex].
Any ideas on the topic would be greatly appreciated. Maybe I'm missing something crucial, as I'm still a high school student, with most of this rotational dynamics stuff being self learned. Thank you.
I know that this applied force will have an x and y component; the y component will propel it upwards, but what I am confused about is the x component of the force. I know that the x component will propel it forwards (linear velocity) and make it spin (angular velocity). I can calculate the rotational force as follows:[tex]F_{rot.}=ma_{tangential}[/tex][tex]F_{rot.}=mr\alpha=\frac{mr\omega}{\Delta t}[/tex]However, what I don't know is the proportion of [itex]F_{app.\,x}[/itex] that contributes to the rotational force and the proportion that contributes to linear force in the x direction. It doesn't make sense if I try to think of both being proportional. That would only work if the sphere were rolling on the floor without slipping, in which case [itex]V_{Center\,of\,mass}=r\omega[/itex].
Any ideas on the topic would be greatly appreciated. Maybe I'm missing something crucial, as I'm still a high school student, with most of this rotational dynamics stuff being self learned. Thank you.