Question

position of an object at time t is given by s(t) = -2 - 6t. Find the instantaneous velocity at t = 2 by finding the derivative.

Answer 1

find ds/dt at t=2

Answer 2

s'(t)=-6
t=2 => s'(t)=0
the instantaneous velocity at the time 2 is 0.

Answer 3

no it is constant ,i.e.,-6

Answer 4

Oops forgot about that XD, i was just looking at the t disappearing