Answer:
K = 5706.6 J
Explanation:
Given that,
The mass of a bullet, m = 50 g = 0.05 kg
The velocity of the bullet, v = 720 km/hr = 477.77 m/s
We need to find the kinetic energy of the bullet. The kinetic energy of an object is due to its motion. It can be given by the formula as follows :
[tex]K=\dfrac{1}{2}mv^2\\\\=\dfrac{1}{2}\times 0.05\times 477.77 ^2\\\\K=5706.6\ J[/tex]
So, the required kinetic energy of the bullet is equal to 5706.6 J.
