Answer:
150 joules.
Step-by-step explanation:
Kinetic Energy of a moving object = 1/2 m v^2.
So it is 1/2 * 12 * 5^2
= 150 J.
Answer: 150 Kg/
K.E = m
K.E = X 12 X 25
K.E = 150
x=14
y=12
so you add 3 plus 9 and 2 plus 4 with 8 and you should get x- 14 and y= 12
Hope this helps