Question

BRAINLIEST question...

PLZ ANSWER QUESTION NO. --( 6 )​

Answer 1

Answer:

See below.

Explanation:

The mass of each bullet is 0.04 kg and it's velocity is 80 m/s. We calculate the kinetic energy for a single bullet,

$\begin{aligned}K=\dfrac {1}{2}mv^{2}\\ =\dfrac {1}{2}\left( 0.04\right) \left( 80\right) ^{2}\\ =0.02\left( 6400\right) \\ =128.00\end{aligned}$

Now, 240 bullets are fired per minute. So, no. of bullets fired per second,

$\dfrac {240}{60}=4$

Hence, the kinetic energy per second,

$\begin{aligned}P=4\left( 128\right) \\ =1024 \ W\end{aligned}$

Which gives us the power of the gun.