Understanding the Concepts
* Work: The work done on an object is equal to the force applied multiplied by the distance over which the force is applied. Work is measured in Joules (J).
* Kinetic Energy: The energy an object possesses due to its motion. It's calculated as (1/2) * mass * velocity².
* Work-Energy Theorem: The work done on an object equals the change in its kinetic energy.
Calculations
1. Calculate the work done:
* Work = Force × Distance
* Work = 300 N × 2 m = 600 J
2. Apply the Work-Energy Theorem:
* Work done = Change in kinetic energy
* Since the sled starts from rest, its initial kinetic energy is 0.
* Therefore, the final kinetic energy of the sled is 600 J.
Important Note: We assumed no friction in this scenario. In reality, friction would reduce the sled's kinetic energy, meaning the final kinetic energy would be less than 600 J.
