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JEEMAIN and NEET
>>
Physics
>>
Class11
>>
Work, Power and Energy
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Q)
A constant force
F
=
(
2
ˆ
i
+
3
ˆ
j
)
newton displaces a body from position
r
1
=
(
4
ˆ
i
−
5
ˆ
j
)
metre to
r
2
=
(
ˆ
i
+
3
ˆ
j
)
metre.Find the work done by the force.
18
J
15
J
16
J
20
J
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