A Projectile Is Fired from Point 0 at the Edge

question 31

Short Answer

A projectile is fired from point 0 at the edge of a cliff, with initial velocity components of
and
, as shown in the figure.The projectile rises and then falls into the sea at point P. The time of flight of the projectile is 40.0 s, and it experiences no appreciable air resistance in flight. What is the magnitude of the velocity of the projectile 21.0 s after it is fired?

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Definitions:

Substrate-Level

Substrate-level refers to a biochemical process that involves the direct transfer of a phosphate group from a substrate molecule to ADP to form ATP, bypassing the need for an electron transport chain.

ATP Synthesis

The process by which cells produce adenosine triphosphate (ATP), a critical energy carrier molecule, primarily in the mitochondria.

ADP

Adenosine diphosphate, a molecule involved in energy transfer within cells.

Exergonic Reaction

Chemical reaction that releases energy; opposite of endergonic reaction.