If the position vector of the particle is given by r=3t^2+5tj^2+4k Find: (a). The velocity of the particle at t = 3 s (b). Speed of the particle
at t = 3 s (C). acceleration of the particle at time t = 3 s​

Answerit increases at a steady rate;

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !