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Physics
Physics
Problem
A 1.5 kg cart moves on a smooth horizontal track with initial velocity
u
=
4
i
^
+
0
j
^
\mathbf{u}=4\,\hat{i}+0\,\hat{j}
u
=
4
i
^
+
0
j
^
m s⁻¹. A constant horizontal force
F
=
3
j
^
\mathbf{F}=3\,\hat{j}
F
=
3
j
^
N acts on the cart for 5 s. Determine: (i) its final velocity vector
v
\mathbf{v}
v
, (ii) the magnitude of its final speed.
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