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Standard X
Physics
Work
Question
Find work done by normal reaction on B during the given displacement.
4000 J
3000 J
1000 J
2000 J
A
1000 J
B
2000 J
C
3000 J
D
4000 J
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Solution
Verified by Toppr
(
W
N
)
o
n
B
=
40
×
100
×
c
o
s
0
∘
= 4000 J
(
W
N
)
o
n
A
=
40
×
100
×
c
o
s
180
∘
= - 4000 J
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