alligators.An alligatorwaits for prey by floating withonly the top of its head exposed, sothat the prey cannot easily see it.One way it can adjust the extent ofsinking is by controlling the size of itslungs. Another way may be by swallowing stones (gastrolithes) thatthen reside in the stomach. a highly simplifiedmodel (a “rhombohedron gater”) of mass 130 kg that roams with itshead partially exposed.The top head surface has area 0.20 m2. If thealligator were to swallow stones with a total mass of 1.0% of its bodymass (a typical amount), how far would it sink?
Gravitational force
In nature, every object is attracted by every other object. This phenomenon is called gravity. The force associated with gravity is called gravitational force. The gravitational force is the weakest force that exists in nature. The gravitational force is always attractive.
Acceleration Due to Gravity
In fundamental physics, gravity or gravitational force is the universal attractive force acting between all the matters that exist or exhibit. It is the weakest known force. Therefore no internal changes in an object occurs due to this force. On the other hand, it has control over the trajectories of bodies in the solar system and in the universe due to its vast scope and universal action. The free fall of objects on Earth and the motions of celestial bodies, according to Newton, are both determined by the same force. It was Newton who put forward that the moon is held by a strong attractive force exerted by the Earth which makes it revolve in a straight line. He was sure that this force is similar to the downward force which Earth exerts on all the objects on it.
alligators.An alligator
waits for prey by floating with
only the top of its head exposed, so
that the prey cannot easily see it.
One way it can adjust the extent of
sinking is by controlling the size of its
lungs. Another way may be by swallowing stones (gastrolithes) that
then reside in the stomach. a highly simplified
model (a “rhombohedron gater”) of mass 130 kg that roams with its
head partially exposed.The top head surface has area 0.20 m2. If the
alligator were to swallow stones with a total mass of 1.0% of its body
mass (a typical amount), how far would it sink?
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