Explanation:
Given:
u = 20 m/s
a = 5 m/s^2
v = 30 m/s
t = ?
Use the first kinematic equation of motion:
v = u + at
t = (v - u)/a = 10/5 = 2 seconds
It could be radiation because radiation means <span>the emission of energy as electromagnetic wave, but potential fits it best</span>
Letter D: The amount of sleep a student gets affects student achievement
