a car manufacturer wants to change its cars design to increase the cars acceleration. which changes should…
a car manufacturer wants to change its cars design to increase the cars acceleration. which changes should the engineers consider making to the design?\n□ increase the force that the engine provides\n□ decrease the force that the engine provides\n□ increase the mass of the car\n□ decrease the mass of the car\n□ increase the top velocity the car can travel\n□ decrease the top velocity the car can travel
Answer
Explanation:
Step1: Recall Newton's second - law
Newton's second - law is $F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration. We can rewrite it as $a=\frac{F}{m}$.
Step2: Analyze the effect of force on acceleration
From $a=\frac{F}{m}$, when $m$ is constant, if we increase $F$, the acceleration $a$ will increase. So increasing the force that the engine provides will increase acceleration.
Step3: Analyze the effect of mass on acceleration
From $a=\frac{F}{m}$, when $F$ is constant, if we decrease $m$, the acceleration $a$ will increase. So decreasing the mass of the car will increase acceleration.
Step4: Analyze the effect of top - velocity on acceleration
Top - velocity is a different concept from acceleration. Changing the top - velocity does not directly affect the acceleration of the car.
Answer:
increase the force that the engine provides, decrease the mass of the car