Question

A bullet of mass of
100 g is moving with a speed
200m/s .what is the kinetic energy of the
bullet​

Answer 1

Answer:

2000 J

Explanation:

mass (m) = 100g = 0.1kg     (conversion to SI unit)

velocity (v) = 200 m/s        

now,

K.E = 1/2(m)(v²)             ( derivation can be found online or class 9 textbooks )

      = 1/2 (0.1) (200²)

      = 1/2 (0.1) (40000)

      = 1/2 (4000)

      = 2000 J

Therefore, K.E = 2000 J

Hope This Helps