Question

What is the kinetic energy of a 0.4 kg football being thrown at 35 m/s?
14 J
490 J
245 J
137.2 J

Answer 1

Answer:

245 J

Explanation:

1) 35^2 = 1225

2) 1225 * 0.4 = 490

3) 490 ÷ 2 = 245