Answer: 5.28kg
Explanation:
Kinetic energy is the energy possessed by a body due to virtue of its motion.
Kinetic energy = 1/2MV²
Where M is the mass of the body
V is the velocity
Given Kinetic energy = 14Joules
Velocity = 2.3m/s
Substituting this values into the formula to get mass,
14 = 1/2M(2.3)²
14 = 2.65M
M = 14/2.65
M = 5.28kg
The mass of the bird is 5.28kg