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Byju's Answer
Standard VIII
Physics
Factors Affecting Kinetic Energy
a machine gun...
Question
a machine gun fires 240 bullets per minute ,each bullet travelled with a velocity of 500 mass of each bullet is 5×^-3 find the power if machine gun
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Solution
Kinetic energy of each bullet is
1
2
m
v
2
=
1
2
×
5
×
10
-
3
×
(
500
)
2
=
1
2
×
5
×
250
So in one minute total workedone is
240
×
1
2
×
5
×
250
So power is
240
×
1
2
×
5
×
250
60
=
2500
W
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