Centripetal force = (mass) x (speed)² / (radius)
= (20 kg) x (20 m/s)² / (20 m)
= (20 x 20 / 20) (kg-meter/sec²)
= 20 newtons
Sample Response: How can magnetic and electric fields be demonstrated?
<span>Velocity tells you what speed a moving object travels at and in what direction.</span>
