Two guns, situated on the top of a hill of height 10 m, fire one shot each with the same speed 
ms -1 at some interval of time. One gun fires horizontally and other fires upwards at an angle of 60º with the horizontal. The shots collide in air at a point P. Find
Text Solution
Verified by Experts(ii) While for the second gun ; (iii) and For collision and i; (i) and ; (ii) co
As shown in Fig, from equation of motion 
for first gun,
and 
…… (ii)
While for the second gun
…… ..(iii)
and 
For collision
and 
i.e., 
and 
i.e., 
and 
Which on simplification gives 
and 
.
So, the interval between the firings 
and substituting 
and 
in Eqns. (i) and (ii) co-ordinates of point P will be 
.
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