While observing penguins at the zoo, Jeremy explained to his brother that the enclosure does not have a roof because penguins cannot fly.

Why can't penguins fly?

A. Drag forces created by body shape prevent flight.
B. Thrust forces cannot be generated by their leg muscles.
C. The force of gravity is less than the lift force that their wings can generate.
D. The force of gravity is greater than the lift force that their wings can generate.



Answer :

Final answer:

Penguins cannot fly due to gravity being greater than the lift force their wings can generate.


Explanation:

Jeremy explained that a penguin cannot fly because...

The correct answer is D. the force of gravity is greater than the lift force that their wings can generate. Penguins are flightless birds due to their body structure and the gravitational force being higher than the lift force needed for flight.

When comparing the forces acting on penguins, the gravitational force pulling them down exceeds the lift force their wings can generate to counteract gravity and achieve flight.


Learn more about Flightless Penguins here:

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