A stone, dropped from a certain height can reach the ground in 10 s. If it is stopped after 5 s of its fall and then allowed to fall again, find the time taken by it to reach the ground for the remaining distance.

A stone, dropped from a certain height can reach the ground in 10 s. I

1.	A stone, dropped from a certain height can reach the ground in 10 s. If it is stopped after 5 s of its fall and then allowed to fall again, find the time taken by it to reach the ground for the remaining distance.
Answer» 5 sec 10 sec 8.67 sec 10 s Solution :Let H be the height from which stone is dropped `h=(1)/(2)xxgxx(10)^(2)=50 G` Distance covered in first fall of 5 s. `h=(1)/(2)xxgxx(5)^(2)=(25)/(2)g` `t^(2)=75` or `t=sqrt(75)=8.66s`

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A stone, dropped from a certain height can reach the ground in 10 s. If it is stopped after 5 s of its fall and then allowed to fall again, find the time taken by it to reach the ground for the remaining distance.

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