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At t=0, force F =kt is applied to a smal...

At t=0, force F =kt is applied to a small body of mass m resting on a smooth horizontal plane (k is a constant). The force is at an angle `theta` with the horizontal

Then the velocity of the body when its breaking off the plane is

A

`frac(mg^2costheta)(2ksin^2theta)`

B

`frac(mgcostheta)(2ksin^2theta)`

C

`frac(mgksintheta)(2cos^2theta)`

D

`frac(mg^2 tan theta)(k)`

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