The position of a particle is represented by f(t) = 4t3 – 3t + 15
What is its instantaneous velocity at time t = 3?
284
275
324
105
None of the other answers
What is the instantaneous velocity at time t = π/2 of a particle whose positional equation is represented by s(t) = 12tan(t/2 + π)?
3√2
12√2
6
6√2
12