In a new system of units, unit of mass is taken as 10 kg, unit of length is 60 m and unit of time is 1 minute. The value of 20 N weight of a body in the new unit will be
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Answer:
Units of Joule are ML
2
T
−2
=kgm
2
s
−2
n
2
=n
1
[
M
2
M
1
][
L
2
L
1
]
2
[
T
2
T
1
]
−2
=1[
10kg
1kg
][
1km
1m
]
2
[
1min
1s
]
−2
=1[
10
1
][
1000
1
]
2
[
60
1
]
−2
=3.6×10
−4
units
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