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Question
Physics
A body of mass, m=3.513kg is moving along the X -axis with a speed of 5.00ms- 1 . The magnitude of its momentum is best recorded as,
Q. A body of mass,
m
=
3.513
k
g
is moving along the
X
-axis with a speed of
5.00
m
s
−
1
. The magnitude of its momentum is best recorded as,
504
147
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A
17.565
k
g
m
s
−
1
B
17.56
k
g
m
s
−
1
C
17.57
k
g
m
s
−
1
D
17.6
k
g
m
s
−
1
Solution:
The formula of linear momentum in terms of mass and linear velocity,
p
=
m
v
=
3.513
×
5.00
=
17.565
k
g
m
s
−
1
=
17.6
k
g
m
s
−
1
(after rounding off to
3
significant figures as in data with the least number of significant figures).