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Physics
Physics
Problem
Identify the correct expression for the apparent weight
R
R
R
of a body of mass
m
m
m
in an elevator accelerating upward with magnitude
a
a
a
. a)
R
=
m
(
g
−
a
)
R = m(g - a)
R
=
m
(
g
−
a
)
b)
R
=
m
a
R = ma
R
=
ma
c)
R
=
m
(
g
+
a
)
R = m(g + a)
R
=
m
(
g
+
a
)
d)
R
=
m
g
2
+
a
2
R = m\sqrt{g^{2}+a^{2}}
R
=
m
g
2
+
a
2
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