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1. A stationary 50 tonne submarine fires a missile of mass 40kg at
an initial velocity of 13m/s to the left.
4G3m
F40kg
50 tonnes
a. Calculate the velocity of the submarine immediately after
firing the missile.
1 tonne = 1000kg
[4 marks)​

1 A stationary 50 tonne submarine fires a missile of mass 40kg atan initial velocity of 13ms to the left4G3mF40kg50 tonnesa Calculate the velocity of the submar class=

Respuesta :

The velocity of the submarine immediately after firing the missile is 0.0104 m/s

Explanation:

Mass of the submarine M=50 tonne=[tex]50\times 1000=50000kg[/tex]

Mass of the missile m=40  kg

velocity of the missile v= 13m/s

we have to calculate the velocity of the submarine after firing

This is the recoil velocity and its expression is derived from the law of conservation of momentum

recoil velocity of the submarine

[tex]V=-mv/M\\=-40\times 13/50000\\=0.0104 m/s[/tex]

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