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Byju's Answer
Standard VIII
Physics
Normal Force
A particle is...
Question
A particle is projected vertically upwards from the surface of the earth(radius R) with a kinetic energy equal to half of the minimum value needed for it to escape. Find the height to which it rises above the surface of earth.
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Solution
1
2
M
m
G
R
=
m
.
G
M
R
(
R
+
h
)
2
⇒
(
R
+
h
)
2
=
2
R
2
⇒
R
+
h
=
√
2
R
⇒
h
=
(
√
2
−
1
)
R
E
×
m
=
1
2
m
v
2
v
=
√
2
E
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