Question

Ashell of maks 60 kg fired from a cannon at a velocity of 500 ms. If the mass of the cannon is 1500 kg, then its recoil velocity is​

Answer 1

Answer:

The conservation of momentum yields

p

shell

=p

cannon

⇒KE

cannon

=

2M

can

p

can

2

;KE

shell

=

2M

sh

p

sh

2

⇒KE

cannon

=

M

canon

M

sh

KE

sh

=

5×10

3

100

×7.5×10

6

=1.5×10

5

J

Further

F

2

F

1

=1. F

1

and F

2

are action reaction pair