1.

A particle `A` is projected verically upwards. Another indentical particle `B` is projected at an angle of `45^(@)`. Both reach the same height. The ratio of the initial kinetic energy of `A` to that of `B` is `-`A. `1:2`B. `2:1`C. `1:sqrt2`D. `sqrt2:1`

Answer» Correct Answer - A
`v_(1)=(v_(2))/(sqrt2)rArr((1)/(2)mv_(1)^(2))/((1)/(2)mv_(2)^(2))=(1)/(2)`


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