A stone is dropped from a certain height and can reach the ground in 5s . But in its fall, the stone is stopped after 3 sec of the fall for a moment and is dropped again at once. If the stone reaches

Question

A stone is dropped from a certain height and can reach the ground in 5s . But in its fall, the stone is stopped after 3 sec of the fall for a moment and is dropped again at once. If the stone reaches the ground in total time of ' t ' seconds. Find the value of t .

TestHub · Accepted Answer

h = 2 1 ​ g ( 5 ) 2 h 1 ​ = 2 1 ​ g ( 3 ) 2 h 2 ​ = h − h 1 ​ = 2 1 ​ g ( 25 − 9 ) = 2 1 ​ g ( 16 ) 2 1 ​ g t 2 2 ​ = 2 1 ​ g ( 16 ) ⇒ t 2 ​ = 4 t = 3 + 4 = 7 s

Physics - Kinematics Question with Solution | TestHub

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JEE Main (2028)

JEE Main - 1 year (12th class)