What is the need to know the linear net acceleration?

AI Thread Summary
Understanding linear net acceleration is crucial in analyzing the motion of objects in rotational systems. In the example of a ball connected to a horizontal fan, while tangential and radial accelerations can be identified, the linear net acceleration becomes significant when the ball loses contact with the fan. At that point, the only acceleration acting on the ball is gravitational acceleration. The interaction between the ball and the fan illustrates Newton's third law, where the forces exerted are equal and opposite, maintaining the ball's position vertically. Ultimately, linear net acceleration helps in predicting the ball's trajectory once it detaches from the fan.
ehabmozart
Messages
212
Reaction score
0
When we talk about rotational motion. I know what is the purpose of angular acceleration. We can get tangential acc. which accelerated the v tangential. Fine. Again, centripetal or radial acceleration for the change in direction but WHAT IS THE NEED TO KNOW THE LINEAR NET ACCELERATION? Take an example of a small ball connected to a horizontal fan. We can know tangential and rADIAL acc but when it looses contact, the only acc is g... Thanks to whoever contributes
 
Physics news on Phys.org
When the fan is spinning the ball will apply a force on the blade equal to its weight. Due to Newton's third law the fan will also apply an equal opposite force on the ball therefore the ball will be static along the vertical axis. The net linear acceleration will then be only along the plane of rotation.
 

Thread 'Is calling fictitious forces "not real" just about terminology?'

Hi there, im studying nanoscience at the university in Basel. Today I looked at the topic of intertial and non-inertial reference frames and the existence of fictitious forces. I understand that you call forces real in physics if they appear in interplay. Meaning that a force is real when there is the "actio" partner to the "reactio" partner. If this condition is not satisfied the force is not real. I also understand that if you specifically look at non-inertial reference frames you can...
View full post »

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
View full post »

Similar threads

B Static friction needed for rolling without slipping
Replies
4
Views
2K
I Does a rotating accelerometer moving linearly measure linear velocity?
Replies
47
Views
4K
Tangential acceleration, linear acceleration, and torque
Replies
5
Views
3K
Radial and tangential components of acceleration
Replies
7
Views
3K
Difference between centripetal and linear acceleration?
Replies
1
Views
4K
B Confusion while trying to build intuition of centripetal force
Replies
15
Views
3K
B The physics of flywheel launchers (like tennis ball shooters)
2
Replies
60
Views
4K
Tangential and centripetal acceleration in circular motion
Replies
4
Views
2K
Spinning objects and angular acceleration
Replies
1
Views
1K
Linear acceleration on a rotating body
Replies
1
Views
5K

Hot Threads

Recent Insights

Back
Top