a body is thrown vertically up with a speed of 10 m/s from the top of a wall of height 3.45m the height from which another body should be dropped simultaneously such that two bodies reach the ground in same time (g=10m/s2) explanation??

Question

aravindg · Answer

guys pls dont help

aravindg · Answer

this qn was answered before

aravindg · Answer

he is posting same qn again

anonymous · Answer

that was a wrong answer

aravindg · Answer

no it was ryt

aravindg · Answer

@experimentX  pls dont post an answer

anonymous · Answer

aravid gave me the answer as 26m but it is not there in the option

anonymous · Answer

the answer is 24.5m

aravindg · Answer

take a look at this http://openstudy.com/updates/4fa62981e4b029e9dc35e6e7

experimentx · Answer

calculate the time of flight!!!
while going up
v = u + at, u = 10, v = 0, t= find it ... let it be t1 = 1s from prev question
also distance 
v^2 = u^2 + 2as
calculate time of while falling
s+3.45 = ut + 1/2 gt^2  <--- get t1 from here, u=0 here

s = u(t1 + t2)  + 1/2 a(t1 + t2)^2, u =0
find s using this formula,

aravindg · Answer

wow superb answer experiment  :P

experimentx · Answer

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To visualize it propertly