select the correct answer. which object has the least amount of kinetic energy? a. a car driving down a road…

select the correct answer. which object has the least amount of kinetic energy? a. a car driving down a road b. a soccer ball rolling down a hill c. a bicycle locked to a bike rack d. a satellite orbiting earth

select the correct answer. which object has the least amount of kinetic energy? a. a car driving down a road b. a soccer ball rolling down a hill c. a bicycle locked to a bike rack d. a satellite orbiting earth

Answer

Answer:

C. a bicycle locked to a bike rack

Explanation:

Step1: Recall kinetic energy formula

Kinetic energy $K = \frac{1}{2}mv^{2}$, where $m$ is mass and $v$ is velocity.

Step2: Analyze each option

  • Option A: A car driving has non - zero velocity, so $K>0$.
  • Option B: A soccer ball rolling has non - zero velocity, so $K>0$.
  • Option C: A bicycle locked to a rack has $v = 0$. Substituting $v = 0$ into $K=\frac{1}{2}mv^{2}$, we get $K = 0$.
  • Option D: A satellite orbiting has non - zero velocity, so $K>0$. So the bicycle locked to a bike rack has the least kinetic energy.