Answer: 3200 joules.
Explanation:
Mass of deer = 100kg
Speed of running deer = 8 m/s
Kinetic energy = ?
Kinetic energy is the energy possessed by a moving body (deer). It is measured in joules.
Thus, Kinetic energy = 1/2 x (Mass x velocity^2)
K.E = 1/2 x (100kg x (8m/s)^2)
K.E = 1/2 x (100 x 64)
= 0.5 x 6400
= 3200 joules
Thus, the kinetic energy of the running deer is 3200 joules.
