B Forces on a passenger in a car?

[beans123]

What would the forces acting only on a passenger in a car going at constant speed on a level surface be? Of course, there would be weight and the reactive force acting on any passenger, but is there a horizontal net force? Or are there just the forces acting on the car and there are no horizontal forces acting on the passenger directly?
Thanks

 

[BvU]

Hello,

$\qquad$ !​

Please read https://www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/

PF wants your attempt at answering the question before we are allowed to assist.

In the mean time: are those passengers accelerating ?

$\$

 

[berkeman]

What would the forces acting only on a passenger in a car going at constant speed on a level surface be? Of course, there would be weight and the reactive force acting on any passenger, but is there a horizontal net force? Or are there just the forces acting on the car and there are no horizontal forces acting on the passenger directly?
Thanks

Is this question for homework? Or a general question as you study Physics at school?

 

[beans123]

This is just a general question based from a personal conversation I had.

 

[Nugatory]

This is just a general question based from a personal conversation I had.

Ok, in that case the question @BvU asked in post #2 is your starting point. What difference does it make? Newton’s second law may also be helpful.

 

[beans123]

Hello,

$\qquad$ !​

Please read https://www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/

PF wants your attempt at answering the question before we are allowed to assist.

In the mean time: are those passengers accelerating ?

$\$

The passengers wouldn't be accelerating since the car is at a constant speed which, of course, means there's no net force.

 

[BvU]

The passengers wouldn't be accelerating since the car is at a constant speed which, of course, means there's no net force.

I agree. What about a follow-up question:
One of the passengers (unwisely) sticks his head out of the window and claims: I can clearly feel a net force ?

$\$

 

[jack action]

What would the forces acting only on a passenger in a car going at constant speed on a level surface be?

None.

It is the same answer for a passenger in a train going at 300 km/h or one in an airplane going at 750 km/h. It is also the same answer for a human being standing still at the equator while actually moving at 1670 km/h.