Final answer:
The kinetic energy of a 10kg object moving at 14m/s is calculated using the formula KE = 1/2mv², resulting in a kinetic energy of 980 Joules.
Step-by-step explanation:
The kinetic energy (KE) of an object can be calculated using the equation KE = 1/2mv², where m is the mass of the object and v is its velocity. In this case, the mass m is 10 kg and the velocity v is 14 m/s. Substituting these values into the equation gives us:
KE = 1/2 × 10 kg × (14 m/s)²
KE = 5 × 196
KE = 980 J (Joules)
Therefore, the kinetic energy of a 10kg object with a velocity of 14m/s is 980 Joules.