Answer:
100 J
Step-by-step explanation:
The formula for kinetic energy is as follows:

where
KE= kinetic energy (J)
m= mass (kg)
v= velocity (m/s)
Given: m= 50 kg, v= 2 m/s
Substituting the given information into the formula:
KE
= ½(50)(2²)
= ½(50)(4)
= 100 J
Answer:
A is reflected over the y axis and translated 2 units up and 2 units to the right.
Translate is the math word for slide
The answer is 50 y squared minus 4 x squared