Question

The position of a particle is given by r = 3.0t i + 2.0t˄2 j + 5.0 k where t is in seconds and the coefficients have the proper units for r to be in metres. Find the magnitude and direction of acceleration of the particle at t = 1.0 s.​

Answer 1

first differentiate the vector r w.r.t. to time

then u will get velocity after that u also differentiate velocity then u will get acceleration