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Physics
Physics
Problem
A vector
P
\mathbf{P}
P
of magnitude
20
units
20\,\text{units}
20
units
is directed at
210
∘
210^{\circ}
21
0
∘
(measured anticlockwise from the positive x-axis). Which of the following correctly states the signs of its rectangular components
(
P
x
,
P
y
)
(P_x, P_y)
(
P
x
,
P
y
)
? a)
(
+
,
−
)
(+,-)
(
+
,
−
)
b)
(
−
,
+
)
(-,+)
(
−
,
+
)
c)
(
−
,
−
)
(-,-)
(
−
,
−
)
d)
(
+
,
+
)
(+,+)
(
+
,
+
)
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