Question

Q100. A bomb of mass 20 kg is moving with a velocity of 10 ms on a straight path and suddenly explodes into two fragments. One moves in the same direction with velocity of 40 ms and other in
opposite direction with velocity of 20 ms-1. Find the magnitude of the masses.​

Answer 1

Answer:

Stationary so initial momentum will be zero.

momentum of 2kg is P

1

=2×8=16kgm/s

that if 1kg is P

2

=1×12=12kgm/s

both being at right angle so their resultant will be P=

P

1

2

+P

2

2

=

256+144

=20kgm/s

the third should have same momentum but in opposite direction to make the net momentum zero.

Now its velocity should be V=

m

P

=

0.5

20

=40m/s

Answer 2

Explanation:

jhhht the same kind of the same