I think it was either Robert Hook or Anton Van Leevwen Hoek
Answer:
The boat won't be able to move if the oars were out and there was no thruster. If there was a flow of the water then yes there would be a moving boat.
Answer:
i - component of V is zero for any value of t i-e no motion in this direction
Explanation:
Since
r= i+3
j+t k
==> V =
=
=
and acceleration is given by taking derivative of velocity w.r.t t
==> a=
=
=
so, V=0i+6tj+k
and
a = 0i+6j+k
i - component of V is zero for any value of t i-e no motion in this direction