when a ball fall from rest it crashes a glass plate after travelling 6 sec and its velocity is decreased by 2/3 then after 2 sec it reaches the ground then find the distance travelled by ball?
distance travelled=(g/2)*62+((1/3)g*6)*2+(g/2)*22
I dont know whether this answer is right or wrong....but,i've still attempted this....
IN THE FIRST LEG OF THE JOURNEY,,ie FROM THE INITIAL POSITION TO THE GLASS PANE .THE DATA IS u=0;v=x(say)ms^-1;t=6secs;
v^2=u^2+2aS,since u=0; v^2/2a=S
a=v/t=.....................
IS THE ANSWER 11x/3 m.......
If thats right i will tell u how it solved this....
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