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NEETPhysicsMotion in Two Dimensions

The position of a particle is given by r=3.0t i +2.0 t ² j +5.0 k where t is in seconds and the coefficients have the proper units for r to be in meters. Find v(t) and a(t) of the particle.

Options

  1. Aa ( t )=~4.0 j ~,~v ( t )=~3.0 i +3.0 j
  2. Ba ( t )=~5.0 j ~,~v ( t )=~4.0 i +4.0 j
  3. Ca ( t )=~4.0 j ~,~v ( t )=~3.0 i +4.0 j
  4. Da ( t )=~5.0 j ~,~v ( t )=~3.0 i +4.0 j

Correct answer

C. a ( t )=~4.0 j ~,~v ( t )=~3.0 i +4.0 j

Step-by-step solution

Correct Option is : (C) a ( t )=~4.0 j ~,~v ( t )=~3.0 i +4.0 j

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