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A Ping-Pong ball hangs from a string that is attached to the rear view mirror of a parked car. The driver side window is open, and the passenger side window is closed. A strong breeze blows along the driver side of the car. What happens to the Ping-Pong ball? Assume the breeze is laminar and that Bernoulli’s equation applies. A Ping-Pong ball hangs from a string that is attached to the rear view mirror of a parked car (see A Ping-Pong ball hangs by a string from a car rearview mirror. The driver side window to the left of the mirror is open, while the passenger side window to the right of the mirror is closed.). The driver side window is open, and the passenger side window is closed. A strong breeze blows along the driver side of the car. What happens to the Ping-Pong ball? Assume the breeze is laminar and that Bernoulli’s equation applies.

a.The ball does not move in either direction.

b.The ball swings towards the passenger side.

c.The ball swings towards the driver side.



Answer :

The answer is ball swings towards passenger side. correct option is (B).

Bernoulli's equation = P+1/2ρv^2+ ρgh=Constant,

so

P1+1/2ρv1^2+ ρgh1= P2+1/2ρv2^2+ ρgh2

(v1^2-v2^2)=g(h2-h1)

So from the formula we can see that the change in velocity depends on the height difference, and the wind blows the ping pong ball will move which will make a height difference and hence the ball will swing.

What is Bernoulli's equation-

According to the Bernoulli's principle of fluid dynamics, a fluid's speed increases at the same time as its static pressure or potential energy decreases.

For more on Bernoulli's equation :

https://brainly.com/question/9506577

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