A particle is projected with 200
, at an angle of 60
. At the highest point it explodes into three particles of equal masses. One goes vertically upward with velocity 100
the second particle goes vertically downward with the same velocity as the first. Then what is the velocity of the third particle?
a)
120 
with 60
angle
b)
200 
with 30
angle
c)
50
vertically upwards
d)
300 
horizontally
A particle is projected with 200 , at an angle of 60 . At the highest point it explodes into three particles of equal masses. One goes vertically upward with velocity 100 the second particle goes vertically downward with the same velocity as the first. Then what is the velocity of the third particle?
a)
120 with 60 angle
b)
200 with 30 angle
c)
50 vertically upwards
d)
300 horizontally
Question ID - 52606 | SaraNextGen Top Answer
A particle is projected with 200 , at an angle of 60 . At the highest point it explodes into three particles of equal masses. One goes vertically upward with velocity 100 the second particle goes vertically downward with the same velocity as the first. Then what is the velocity of the third particle?
a)
120 with 60 angle
b)
200 with 30 angle
c)
50 vertically upwards
d)
300 horizontally
|
A particle is projected with 200 |
||||||||
|
a) |
120 |
b) |
200 |
c) |
50 |
d) |
300 |
|
|
(d) At the highest point momentum of particle before explosion
Now as three is no external force during explosion, hence
However, since velocities of two fragments, of masses
|
horizontally
each, are 100 
downward and 
upward.
or 
m horizontally
horizontally