Oscillation - car losing contact with bridge

In summary, the conversation discusses the acceleration of a bridge and a car on it. The car loses contact with the bridge at a point where the acceleration of the bridge is greater than the acceleration of gravity. This may seem counterintuitive, but it is because the bridge is accelerating downwards towards equilibrium.
  • #1
jsmith613
614
0

Homework Statement


See attachment



Homework Equations





The Attempt at a Solution



Ok so as the bridge is at a point ABOVE eqm acceleration is DOWN and at some point ACC down is greater than gravity acceleration.
This is all true but makes no sense to logically. How could the car lose contact with the bridge at this point. Is the car thrown into the air, or does the bridge simply accelerate DOWN faster than the car
 

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  • #2
hi jsmith613! :smile:
jsmith613 said:
… does the bridge simply accelerate DOWN faster than the car

yup! :biggrin:
 
  • #3
tiny-tim said:
hi jsmith613! :smile:


yup! :biggrin:

ok, trying to visuallise this.
I presume this will though, above eqm, as the bridge moves DOWN towards eqm??
 
  • #4
yes :smile:
 
  • #5
tiny-tim said:
yes :smile:

thanks
 

1. What causes a car to lose contact with a bridge during oscillation?

There are several factors that can contribute to a car losing contact with a bridge during oscillation. These include the design and construction of the bridge, the speed and weight of the car, and external forces such as wind or earthquakes.

2. Is it dangerous for a car to lose contact with a bridge during oscillation?

Yes, it can be very dangerous for a car to lose contact with a bridge during oscillation. This can lead to loss of control and potentially cause the car to crash or fall off the bridge.

3. How can engineers prevent cars from losing contact with bridges during oscillation?

Engineers can use various techniques to prevent cars from losing contact with bridges during oscillation. This includes designing the bridge to withstand the forces of oscillation, installing shock absorbers or dampening systems, and implementing speed limits for cars crossing the bridge.

4. What should I do if my car loses contact with a bridge during oscillation?

If your car loses contact with a bridge during oscillation, it is important to remain calm and try to steer the car back onto the bridge. If this is not possible, try to slow down and stop the car safely. Seek help and report the incident to the relevant authorities.

5. Can bridges collapse due to cars losing contact during oscillation?

Yes, in extreme cases, bridges can collapse due to cars losing contact during oscillation. This is why it is important for engineers to carefully design and maintain bridges to withstand these forces, and for drivers to follow speed limits and other safety measures when crossing bridges.

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