Q. A force F(vector)=v(vector) x A(vector) is exerted on a particle in addition to the force of gravity, where v(vector) is the velocity of the particle and A(vector) is a constant vector in the horizontal direction. With what minimum speed a particle of mass m be projected so that it continues ti=o move undeflected with a constant velocity??

 

Plzz help me with a detailed answer.

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