Final velocity = initial velocity + (acceleration*time)
That is v = u + at
So 20 = u + (2.15*7)
20 = u + 15.05
Thus, u = 20 - 15.05
= 4.95 meters/second
that is C
Kinetic energy is the energy of mass in motion, the kinetic energy that an object has is because of it's motion.Heavier objects that are moving have more kinetic energy than lighter ones.
<h2>for cara a 50+10000=9768m in for 500×9768=586858metres </h2>
<h2>R:1.0000000000.</h2>
No no no no none no Neverland
