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Grade 10AIPMT

a ball of mass 100g is thrown from a building of height 100m ith velocity of 25m/s2. find the time taken

Profile image of siddhi
6 Years agoGrade 10
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1 Answer

Profile image of Vikas TU
6 Years ago
Dear student
Use S = ut +½ gt^2 
u =25 m/s 
100 = 25t +5t^2 
t^2 +5t - 20 = 0 
t = (-5+ sqrt(105))/2 
Hope this will help 
Good Luck 
 
 

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