A car travels rightwards with constant velocity on a horizontal surface. Which of the following options about the direction of acceleration, the direction of the net force, the kin... A car travels rightwards with constant velocity on a horizontal surface. Which of the following options about the direction of acceleration, the direction of the net force, the kinetic energy of the car, and the sign of the net work done by external forces is correct for the situation described?
Understand the Problem
The question is asking to analyze the behavior of a car traveling at constant velocity and determine the correct attributes related to acceleration, net force, kinetic energy, and net work done by external forces from the provided options.
Answer
Option C: Zero, Zero, Constant, Zero.
The final answer is option C: Zero, Zero, Constant, Zero.
Answer for screen readers
The final answer is option C: Zero, Zero, Constant, Zero.
More Information
When a car travels with constant velocity, it means there is no acceleration, thus no net force acting on it. This results in a constant kinetic energy and zero net work done by external forces.
Tips
A common mistake is to assume there's net work being done even when kinetic energy is constant. Remember, work is related to changes in energy.
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