Basketball Projectile Motion problem

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SUMMARY

The basketball projectile motion problem involves calculating the initial velocity required for a basketball thrown at a 30-degree angle to reach a hoop 4.92 meters away and 0.457 meters above the release point, with gravitational acceleration set at 10 m/s². The horizontal and vertical components of motion are defined by the equations Vx(t) = (Initial velocity x cos30) t and Vy(t) = (Initial velocity x sin30) - gt. The solution requires determining the time of flight to ensure the ball passes through the hoop on its descent.

PREREQUISITES
  • Understanding of projectile motion principles
  • Familiarity with trigonometric functions (sine and cosine)
  • Knowledge of kinematic equations
  • Basic algebra for solving equations
NEXT STEPS
  • Calculate the initial velocity using the range and height equations
  • Explore the concept of vector addition in projectile motion
  • Learn how to derive time of flight for projectile motion
  • Investigate the effects of varying launch angles on projectile trajectories
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Students studying physics, particularly those focusing on mechanics and projectile motion, as well as educators looking for practical examples to illustrate these concepts.

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Homework Statement


You throw a basketball towards a basketball hoop that is 4.92 m away from you, and 0.457 above the release point at 30 degrees above the horizontal (assume g = 10 m/s2)

How fast does the ball have to leave your hand to pass through the hoop on its way down?


Homework Equations


So dx = 4.92 m, and dy= 0.457 m
Vx(t) = (Initial velocity x cos30) t
Vy(t) = (Initial velocity x sin30) x gt

The Attempt at a Solution



I know that I just need to find either the x component or y component of velocity as I have θ = 30° which I can use to find the velocity from the release point.

I feel like this question is missing something. I just can't find the time it takes to reach the top (and then it will come back down and go into the hoop) or time it takes to reach the hoop.

Any help would be appreciated.
 
Physics news on Phys.org
You throw a basketball towards a basketball hoop that is 4.92 m away from you, and 0.457 above the release point at 30 degrees above the horizontal (assume g = 10 m/s2)
-------------------------
The time for the ball to reach 4.92m away is equal to the time it needed to reach 0.457m above.
It is the addition of 2 vectors(displacements) that determine the position of the ball.
 

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