2. 1D Motion / Kinematics

When an object is released with an initial velocity upward near $E{a}^{r}th$'s surface, in what direction does it accelerate?

A pike accelerates from rest to a speed of $8m/s$ in $0.4s$ during a strike. What is the acceleration of the pike during this strike?

What is the acceleration of a car that maintains a constant velocity of $100km/h$ for $10s$?

Why is slowing down considered $acceleration$ in physics?

Which of the following is the cause of an acceleration?

A rocket sled accelerates from $10\text{m/s}$ to $50\text{m/s}$ in $2\text{s}$. What is the acceleration of the sled?

Given a motion diagram showing an object speeding up in a straight line, which of the following correctly shows the $a$ vectors added to the diagram?

A car moving south speeds up from $10\text{m/s}$ to $40\text{m/s}$ in $15\text{s}$. What is the car's acceleration?

The $2 \mathrm{second}$ rule applies to vehicles traveling under which of the following conditions?

A car maintains a constant velocity of $120\mathrm{km}/h$ for $10s$. What is the acceleration of the car during this time?

The average acceleration vector must point in the same direction as which of the following vectors?

When an object speeds up in the direction of its velocity ($v$), what type of acceleration does it experience?

A car traveling at an initial velocity of $v=20m/s$ comes to a stop in $t=4s$ after the brakes are applied. What is the magnitude of the car's acceleration $a_x$ during this time?

If blood is accelerated from rest to a speed of $30.0cm/s$ in $0.200s$, what is the magnitude of its acceleration?

Which of the following best describes the physical quantity defined as the rate at which velocity changes with respect to time? (i.e., $\frac{\partial v}{\partial t}$)