Answer:
45 kg
Explanation:
The mass of the shell can be found by using the formula
[tex]m = \frac{p}{v} \\ [/tex]
p is the momentum
v is the velocity
From the question we have
[tex]m = \frac{6750}{150} = \frac{675}{15} \\ [/tex]
We have the final answer as
45 kg
Hope this helps you
