A shell is fired from a cannon with velocity 
m/s at an angle 
with the horizontal direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon, then the speed in m/s of the other piece immediately after the explosion is
a)
3
b)
2
c)
d)
A shell is fired from a cannon with velocity m/s at an angle with the horizontal direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon, then the speed in m/s of the other piece immediately after the explosion is
a)
3
b)
2
c)
d)
Question ID - 100242 | SaraNextGen Answer
A shell is fired from a cannon with velocity m/s at an angle with the horizontal direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon, then the speed in m/s of the other piece immediately after the explosion is
a)
3
b)
2
c)
d)
|
A shell is fired from a cannon with velocity |
|||||||
|
a) |
3 |
b) |
2 |
c) |
|
d) |
|
|
(a) In case of projectile motion as at the highest point
The initial linear momentum of the system will be Now as force of blasting is internal and force of gravity is vertical, so linear momentum of the system along horizontal is conserved, i.e.,
But it is given that
Solving, we get |
and 
and as one part retraces its path,
