Question

5.
A cannon of mass (M.)=2000 kg located on a smooth horizontal plan
form fires a shell of mass M=200 kg in horizontal direction with a
velocity V =400 m/s. Find the velocity of the cannon (V.) after it is shot.
(OR)​

Answer 1

Answer:

-20m/s

Explanation:

We have to use conservation of linear momentum.

let the mass of shell be m and velocity be v and mass of cannon be M and velocity of cannon after shot be V

therefore,

mv = -MV

(200) * (400) = - (2000) * V

V = -20m/s