Question

answer this question please
​

Answer 1

Given,

S = 3t²-2t = x

we know,

v = dx/dt = d3t²-2t/dt = 6t -2

at t = 3

Instantaneous velocity of particle = 6×3-2 = 18-2 = 16m/s

The correct option is (4)16m/s

Cheers!