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?\nincreasing the inertia of the car\ndecreasing the reaction force\nincreasing the action force\ndecreasing the mass of the car
Answer
Explanation:
Step1: Recall Newton's second - law
Newton's second - law is $F = ma$, where $F$ is the net force, $m$ is the mass, and $a$ is the acceleration. We can rewrite it as $a=\frac{F}{m}$.
Step2: Analyze the situation
The engine provides a certain force $F$. To increase the acceleration $a$ while keeping the force $F$ constant (same engine), we need to change the mass $m$.
Step3: Determine the correct change
From $a=\frac{F}{m}$, when $F$ is constant, if we decrease $m$, the value of $a$ will increase.
Answer:
decreasing the mass of the car