1.

A solid sphere and a solid cylinder of same mass are rolled down on two inclined planes of heights h_(1) and h_(2) respectively. If at the bottom of the planethe two objects have same velocities, then the ratio of h_(1) : h_(2) is

Answer»

`2:3`
`7:5`
`14:15`
`15:14`

Solution :ACCORDING to the QUESTION,
`(K_(T))_("sphere")=(K_(T))_("CYLINDER")""("m and v are same")`
`:. (5)/(7)(mgh_(1))=(2)/(3)(mgh_(2))rArr(h_(1))/(h_(2))=(14)/(15)`.


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