Projectile motion and kinematics in 2D

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SUMMARY

The discussion focuses on calculating the vertical component of a dolphin's velocity during a leap at a 35-degree angle, with a known horizontal velocity of 7.7 m/s. To find the vertical component, users should apply the relationship between the components of the velocity vector and its magnitude using trigonometric functions. Specifically, the equation for the horizontal component is given by the formula: horizontal component = magnitude * cos(theta). This allows for the calculation of the overall velocity magnitude, which can then be used to determine the vertical component using the sine function.

PREREQUISITES
  • Understanding of basic trigonometry, specifically sine and cosine functions.
  • Familiarity with the concept of velocity components in physics.
  • Knowledge of projectile motion principles.
  • Ability to manipulate equations to isolate variables.
NEXT STEPS
  • Study the principles of projectile motion in two dimensions.
  • Learn how to resolve vectors into their components using trigonometric functions.
  • Explore the equations of motion for objects in free fall.
  • Practice problems involving velocity components and angles in physics.
USEFUL FOR

Students studying physics, particularly those focusing on kinematics and projectile motion, as well as educators looking for examples of velocity component calculations.

Ajeezy
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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
 
Physics news on Phys.org
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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