A heavy loaded truck and a light bicycle travel at the exact same speed along a flat highway. Which vehicle…

A heavy loaded truck and a light bicycle travel at the exact same speed along a flat highway. Which vehicle possesses greater kinetic energy?
  1. The light bicycle, because it moves with less air resistance
  2. The heavy truck, because kinetic energy increases with greater mass
  3. Both have identical kinetic energy because their speeds are equal
  4. Neither has kinetic energy because the road is flat

Solution

Kinetic energy depends on both mass and speed. At the same speed, an object with greater mass (the truck) possesses more kinetic energy.

Asked in: Homi Bhabha Practice

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