If an object's velocity as a function of time is given by $v=3t-2$ (in $m/s$), the acceleration of the object at time $t=0.7$ $s$ is most nearly equal to which of the following?

When demonstrating the 2025 Leaf’s smooth acceleration, which of the following best describes the car’s acceleration if it increases its speed uniformly from rest to $20$ m/s in $10$ seconds?

When demonstrating the 2023 Leaf’s smooth acceleration, which of the following best describes the car’s acceleration if it increases its velocity uniformly from rest to $20m/s$ in $10s$?

Which of the following factors directly affect an individual's total stopping time when bringing a moving vehicle to rest?

A car moves $4$ times as fast as another identical car. Compared to the slower car, the faster car has:

If an object's mass $m$ decreases while a constant force $F$ acts on it, the acceleration $a$:

Suppose an object is in free fall near Earth's surface and air resistance is negligible. Each second, the object falls:

When an object's velocity is positive ($v>0$) and its acceleration is negative (), what happens to the object's motion?