Projectile motion and kinematics in 2D

AI Thread Summary
To find the vertical component of the dolphin's velocity, use the relationship between the components of the velocity vector and its magnitude. Given the horizontal component of 7.7 m/s and the launch angle of 35 degrees, apply the equation for the horizontal component, which is the horizontal velocity multiplied by the cosine of the angle. This allows for the calculation of the initial velocity magnitude. Once the initial velocity is determined, the vertical component can be found using the sine of the angle. Understanding these relationships is crucial for solving projectile motion problems in two dimensions.
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Homework Statement


A dolphins leaps out of the water at an angle of 35 degrees above the horizontal. The horizontal component of the dolphin's vleocity is 7.7 m/s. Find the magnitude of the veritcle component.


Homework Equations


I'm not sure what equations to use.


The Attempt at a Solution


No attempts either, I'm totally clueless.

thanks for any help
 
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How are the components of the velocity vector related to its magnitude?
 
you know the horizontal component, and you know that horizontal component*costhetheta yields an answer of 7.7 m/s , so find vi, and solve for vertical component
 

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