engineers are trying to improve a race car. their goal is to increase the acceleration of the car using the…

engineers are trying to improve a race car. their goal is to increase the acceleration of the car using the same engine. which change shows the best application of newtons laws of motion to achieve this goal?\n○ increasing the inertia of the car\n○ decreasing the reaction force\n○ increasing the action force\n○ decreasing the mass of the car

engineers are trying to improve a race car. their goal is to increase the acceleration of the car using the same engine. which change shows the best application of newtons laws of motion to achieve this goal?\n○ increasing the inertia of the car\n○ decreasing the reaction force\n○ increasing the action force\n○ decreasing the mass of the car

Answer

Explanation:

Step1: Recall Newton's second - law

Newton's second - law is $F = ma$, where $F$ is the force, $m$ is the mass, and $a$ is the acceleration. Rearranging for acceleration gives $a=\frac{F}{m}$.

Step2: Analyze each option

  • Increasing inertia (mass) would decrease acceleration according to $a = \frac{F}{m}$ if $F$ is constant.
  • Decreasing the reaction force is not relevant as the engine force is the main driving force here and reaction force is not the key to increasing acceleration.
  • There is no way to increase the action force with the same engine.
  • Decreasing the mass $m$ while keeping the force $F$ (from the same engine) constant will increase the acceleration $a$ according to $a=\frac{F}{m}$.

Answer:

decreasing the mass of the car