the acceleration due to gravity on a planet is 1.96m/s2 .If it is safe to jump from a height of 3m on the earth, the corresponding height of the planet will be ?

Given,Initial velocity, a=0Acceleration due to gravity for earth, a=9.8m/s2Vertical distance travelled=3 mFinal velocity, v=0Using relation,v2-u2=2asor v2-0=2×9.8×3=58.8or v=7.7 m/sIn the second case,u=0,v=58.8,a=19.6 m/s2Again,58.8-0=2×19.6×ss=58.839.2=1.5 m

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