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Grade 9Wave Motion

A ball is dropped from height h . How much time taken by the ball to reach the ground (take g as acceleration due to gravity) ?

Profile image of pratik panchal
9 Years agoGrade 9
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2 Answers

Profile image of Tushar Kumar Verma
9 Years ago
Initial velocity,u=0by using newton`s third equation of motion h=ut+(1/2gt^2),we get-h=1/2gt^22h=gt^2t=square root (2h/g)
Profile image of PASUPULETI   GURU MAHESH
9 Years ago
intial U =0
we know that h=ut+1/2 at2
                     h=½ gt2
                      t=root of (2h/g)
time taken ball reach the ground is t=root of (2h/g)
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