Question

PLS HELP
3. Which has more kinetic energy, a train traveling at 50 miles per hour, or a bicycle traveling at 15 miles per hour? Explain why.

Answer 1

A train traveling at 50 miles per hour will have more kinetic energy than a bicycle traveling at 15 miles per hour.   Kinetic energy can be calculated as the product of mass and velocity divided by 2.   The formula is as follows -   KE - 1/2 * mass * velocity.   Since a train is heavier and speedier than a bicycle, it will have more kinetic energy.