Concept explainers
The reason for the balloon to tilt forward and also the angel of the tilt in equilibrium.
Answer to Problem 9.1P
The angel of the tilt in equilibrium is
Explanation of Solution
When the car is at the rest the balloon floats up in a direction opposite to the pull of the gravity
From the equivalence principle, a frame accelerating to the right is equivalent to a non- accelerating frame with an artificial gravity
Then the effective gravity is the vector sum of these two and directs as shown in the figure 1.
The balloon will float in a direction opposite to this
By the equivalence Principle, it will do the same thing in the actual, accelerating car towards the right.
Conclusion:
Write the expression from the figure 3,
Here,
The angel of the tilt in equilibrium is