The potential energy of a particle of ma...

The potential energy of a particle of mass 5 kg moving in the `x-y` plane is given by `U=(-7x+24y)J`, where x and y are given in metre. If the particle starts from rest, from the origin, then the speed of the particle at `t=2`s is

`5ms^(-1)`

`14ms^(-1)`

`17.5ms^(-1)`

`10ms^(-1)`

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