BR physics typo on pg 29?

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silverice

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On page 29 of BR physics volume 1 has listed a few numbered equations and followed by a paragraph that were supposedly tell the limit of the use of the equations. But I think there's a typo, and I would be much appreciated if you guys can decode the typo.

Below is the retune from the book.

1.24 t top=Voy/g
1.25 r= (2VoxVoy)/g
1.26 r = (Vo^2Sin2theta)/g
1.27. h= Voy^2/(2g)
Equation 1.28 and 1.29 will work only if the initial height and the final height are the same. Equations 1.27 and 1.30, however, are general equations and do not depend on the initial and final height being the same.


There were no more equations beyond 1.27 in the chapter one. Please help.
 
It's a typo. Just looking at the equations, the middle two are for the range of a projectile, so the initial and final heights are the same. The first and last are general equations.
 
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