Can someone please help me with physics?

Posted on 2014-12-16 06:13:00 in Physics by ALMA

You’re driving in a convertible car with the top up and the windows closed. You note that the fabric top puffs up. To what can this phenomenon be attributed?

1. Both
2. Bernoulli’s principle
3. Newton’s laws

Consider a baseball pitched with a spin around the vertical axis. To be precise, let the ball’s initial direction be Northward and the direction of its spin be clockwise when observed from above. Because of aerodynamic effects, the spinning ball will

1. fly in a parabola due to gravity; aerodynamic effects make no difference.
2. curve toward the West.
3. turn steeply down because of both gravity and aerodynamic effects.
4. turn upward before falling down.
5. fly in exactly straight line.
6. curve toward the East

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