Answer:
The kinetic energy (K) of an object is given by the equation:
K = 1/2 mv^2
where m is the mass of the object and v is its velocity.
Plugging in the values given, we get:
K = 1/2 (30 kg) (5 m/s)^2
K = 1/2 (30) (25)
K = 375 J
Therefore, the girl's kinetic energy is 375 joules.
Step-by-step explanation: