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Assuming the gravity to be in negative z...

Assuming the gravity to be in negative z-direction, a force `F=vxxA` is exerted on a particle in addition to the force of gravity where v is the velocity of the particle and A is a constant vector in positive x-direction. With what minimum speed a particle of mass m be projected so that it continues to move undeflected with constant velocity ?

A

`-(A)/(mg) hat j`

B

`(A)/(mg) hat j`

C

`(mg)/(A) hat j`

D

`-(mg)/(A) hat j`

Text Solution

Verified by Experts

The correct Answer is:
D
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