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Byju's Answer
Standard XII
Physics
Introduction
A particle is...
Question
A particle is projected with a speed
v
at an angle
θ
with the horizontal. Find the mean power delivered by gravity during the ascent of the particle
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Solution
The magnitude of mean power for
=
¯
¯¯
¯
P
=
1
t
0
∫
t
0
0
m
→
g
.
→
v
y
d
t
=
1
t
0
∫
t
0
0
m
g
.
v
′
y
d
t
[
v
′
y
=
(
v
y
−
g
t
)
]
⇒
¯
¯¯
¯
P
=
1
t
0
∫
t
0
0
m
g
(
v
y
−
g
t
)
d
t
;
t
0
=
v
sin
θ
g
⇒
¯
¯¯
¯
P
=
m
g
v
y
2
=
m
g
v
sin
θ
2
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