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Question
Physics
Same force acts on two bodies of different masses 8 kg and 10 kg initially at rest. The ratio of times required to acquire same final velocity is
Q. Same force acts on two bodies of different masses 8 kg and 10 kg initially at rest. The ratio of times required to acquire same final velocity is
3002
182
Laws of Motion
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A
1 : 1
6%
B
8 : 11
6%
C
4 : 5
89%
D
2 : 3
0%
Solution:
t
=
a
v
∴
t
∝
a
1
[
F
=
ma
,
F
=
same,
m
∝
a
1
]
t
∝
a
1
∝
m
t
∝
m
t
2
t
1
=
m
2
m
1
=
10
8
=
5
4