Question

a gun of mass 3000 kg fires a shell of mass 5kg in horizontal direction the gun recoil at 4.0m/s. calculate the velocity of the shell physics class 11​

Answer 1

Explanation:

a gun of mass 3000 kg fires a shell of mass 5kg in horizontal direction the gun recoil at 4.0m/s. calculate the velocity of the shell physics class 11

Answer 2

Given: A gun of mass 3000 kg fires a shell of mass 5 kg in horizontal direction and the gun recoils at 4.0 m/s.

To find: The velocity of the shell.

Solution:

• The recoil of a gun is given by the formula,

        $MV = mv$

• Here, M is the mass of the gun, V is the velocity of the gun, m is the mass of the shell and v is the velocity of the shell.
• On replacing the terms with the values given in the question, the obtained equation is,

        $3000 kg * 4ms^{-1} = 5kg * v$

• On rearranging and solving further, the value of v is found to be,

        $v = 2400 ms^{-1}$

Therefore, the velocity of the shell is 2400 ms⁻¹.