A body of mass 
at rest explodes into three pieces, two of which of mass 
each are thrown off in mutually perpendicular directions with speeds of 3
and 4
respectively. Then the third piece will be thrown off with a speed of
a)
1.5 
b)
2
c)
2.5
d)
3.0
A body of mass at rest explodes into three pieces, two of which of mass each are thrown off in mutually perpendicular directions with speeds of 3 and 4 respectively. Then the third piece will be thrown off with a speed of
a)
1.5
b)
2
c)
2.5
d)
3.0
Question ID - 52484 | SaraNextGen Top Answer
A body of mass at rest explodes into three pieces, two of which of mass each are thrown off in mutually perpendicular directions with speeds of 3 and 4 respectively. Then the third piece will be thrown off with a speed of
a)
1.5
b)
2
c)
2.5
d)
3.0
|
A body of mass |
||||||||
|
a) |
1.5 |
b) |
2 |
c) |
2.5 |
d) |
3.0 |
|
1 Answer
127 votes
Answer Key / Explanation : (c) -
|
(c) As there is no external force, hence
[since
|
constant
and 
are mutually perpendicular]
127 votes
Answer Link
127