Projectile motion

  • Thread starter magnifik
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  • #1
magnifik
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Homework Statement


A cannon ball is fired with speed v0 at an angle phi above the horizontal. The launch point is at height h above the ground. Find the time to hit the ground, and the magnitude of the velocity when the ball hits the ground (in terms of v0, g, h, [tex]\phi[/tex])


Homework Equations


y=v0sin([tex]\phi[/tex])t - 1/2gt^2
vy=v0sin([tex]\phi[/tex]) - gt


The Attempt at a Solution


how do i account for initial height?
 

Answers and Replies

  • #2
rock.freak667
Homework Helper
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Homework Equations


y=v0sin([tex]\phi[/tex])t - 1/2gt^2
vy=v0sin([tex]\phi[/tex]) - gt


The Attempt at a Solution


how do i account for initial height?

y=y0+v0sin(φ)t - 1/2gt2
 

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