Physics, 31.08.2019 18:30 omojay1257
Arock is thrown upward from the level ground in such a way that the maximum height of its flight is equal to its horizontal range r.
at what angle is the rock thrown?
Answers: 1
follows 
while the horizontal motion follows 
where 
is the angle of the throw with respect to the ground and 
is the initial speed of the rock.
: the rock hits the ground when 
which happens for 
, and it has thus traveled 
.
that is to say at 
. At this time it has a height of 
i.e. for 
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Arock is thrown upward from the level ground in such a way that the maximum height of its flight is...
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