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Assuming the gravity to be in negative z -direction, a forcevecF =vecV xx vecA is exerted on a particle in addition to the force of gravity where vecV is the velocity of the particle and vecA is a constant vector in positive x - direction. What minimum speed a particle of mass in be projected so that it continues to move undeflected with constant velocity? |
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Answer» Solution :`|VECF| =vA sin THETA` Here, `theta`is angle between `vecv` and `vecA` The particle MOVES undeflected if `vecF` acts be in positive z-direction. Hence, veloicty should be in negative y-direction. or `vecV_("MIN") =-(mg)/A hatj` |
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