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The linear momentum of a particle is given by `vec(P)=(a sin t hati- acos t hatj) kg- m//s`. A force `vec(F)` is acting on the particle. Select correct alternative/s:A. Linear momentum `vec(P)` of particle is always parallel to `vec(F)`B. Linear momentum `vec(P)` of particle is always perpendicular to `vec(F)`C. Linear momentum `vec(P)` is always constantD. Magnitude of linear momentum is constant with respect to time. |
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Answer» `vec(F)=(vec(dp))/(dt)=a cos t hati+asin hatj` `vec(F).vec(P)=0` Magnitude of momentum. `=sqrt(a^(2)cos^(2)t +a^(2)sin^(2)t)=a` |
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