Complete the paragraph to describe the relationship between kinetic energy and braking distance. Use KE = ¿m v2
of 100 kilometers/hour,
A car moves at a speed of 50 kilometers/hour. Its kinetic energy is 400 joules. If the same car moves at a speed
then its kinetic energy will be
Y joules. The braking distance at the faster speed is
the braking distance at the
slower speed.