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Grade 12th pass9 grade science

Time taken by an object falling from rest to cover the height of div​ and h2​ is respectively t1​ and t2​ then the ratio of t1​ to t2​ is

Profile image of Harshit Singh
4 Years agoGrade 12th pass
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1 Answer

Profile image of Yash Patari
4 Years ago
DEAR STUDENT
from the principle of conservation of energy

potential energy = kinetic energy

or

(1/2)mv2 = mgh

or

v = √(2gh)

 

so, the velocity of the two bodies would be

v1 = √(2gh1)

and

v2 = √(2gh2)

 

the ratio of the velocities would be

v1/v2 = √(h1) / (√h2)